47206780 has 48 divisors (see below), whose sum is σ = 103320000. Its totient is φ = 18095616.

The previous prime is 47206777. The next prime is 47206781. The reversal of 47206780 is 8760274.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47206781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115216 + ... + 115624.

It is an arithmetic number, because the mean of its divisors is an integer number (2152500).

Almost surely, 2^47206780 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 47206780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51660000).

47206780 is an abundant number, since it is smaller than the sum of its proper divisors (56113220).

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

47206780 is a wasteful number, since it uses less digits than its factorization.

47206780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 47206780 is about 6870.7190307856. The cubic root of 47206780 is about 361.4110770597.

The spelling of 47206780 in words is "forty-seven million, two hundred six thousand, seven hundred eighty".