47235820 has 24 divisors (see below), whose sum is σ = 99858528. Its totient is φ = 18768000.

The previous prime is 47235817. The next prime is 47235821. The reversal of 47235820 is 2853274.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (47235821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4801 + ... + 10840.

It is an arithmetic number, because the mean of its divisors is an integer number (4160772).

Almost surely, 2^47235820 is an apocalyptic number.

It is an amenable number.

47235820 is an abundant number, since it is smaller than the sum of its proper divisors (52622708).

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

47235820 is a wasteful number, since it uses less digits than its factorization.

47235820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15801 (or 15799 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 47235820 is about 6872.8320218088. The cubic root of 47235820 is about 361.4851711219.

The spelling of 47235820 in words is "forty-seven million, two hundred thirty-five thousand, eight hundred twenty".