47782980 has 96 divisors (see below), whose sum is σ = 169908480. Its totient is φ = 10920960.

The previous prime is 47782963. The next prime is 47783003. The reversal of 47782980 is 8928774.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2541 + ... + 10100.

It is an arithmetic number, because the mean of its divisors is an integer number (1769880).

Almost surely, 2^47782980 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 47782980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84954240).

47782980 is an abundant number, since it is smaller than the sum of its proper divisors (122125500).

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

47782980 is a wasteful number, since it uses less digits than its factorization.

47782980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12666 (or 12658 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 47782980 is about 6912.5234176819. The cubic root of 47782980 is about 362.8755806095.

The spelling of 47782980 in words is "forty-seven million, seven hundred eighty-two thousand, nine hundred eighty".