47761780 has 48 divisors (see below), whose sum is σ = 111242880. Its totient is φ = 17078400.

The previous prime is 47761759. The next prime is 47761781. The reversal of 47761780 is 8716774.

47761780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47761781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11641 + ... + 15199.

It is an arithmetic number, because the mean of its divisors is an integer number (2317560).

Almost surely, 2^47761780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47761780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55621440).

47761780 is an abundant number, since it is smaller than the sum of its proper divisors (63481100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47761780 is a wasteful number, since it uses less digits than its factorization.

47761780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640 (or 3638 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 47761780 is about 6910.9897988638. The cubic root of 47761780 is about 362.8219066841.

It can be divided in two parts, 4776 and 1780, that added together give a palindrome (6556).

The spelling of 47761780 in words is "forty-seven million, seven hundred sixty-one thousand, seven hundred eighty".