47800920 has 32 divisors (see below), whose sum is σ = 143403120. Its totient is φ = 12746880.

The previous prime is 47800919. The next prime is 47800931. The reversal of 47800920 is 2900874.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199051 + ... + 199290.

Almost surely, 2^47800920 is an apocalyptic number.

47800920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47800920 is an abundant number, since it is smaller than the sum of its proper divisors (95602200).

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

47800920 is a wasteful number, since it uses less digits than its factorization.

47800920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398355 (or 398351 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 47800920 is about 6913.8209406955. The cubic root of 47800920 is about 362.9209885028.

The spelling of 47800920 in words is "forty-seven million, eight hundred thousand, nine hundred twenty".