47815072 has 48 divisors (see below), whose sum is σ = 96707520. Its totient is φ = 23265792.

The previous prime is 47815049. The next prime is 47815081. The reversal of 47815072 is 27051874.

It is a happy number.

It is a super-2 number, since 2×47815072² = 4572562220730368, which contains 22 as substring.

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, 293263 + ... + 293425.

It is an arithmetic number, because the mean of its divisors is an integer number (2014740).

Almost surely, 2^47815072 is an apocalyptic number.

It is an amenable number.

47815072 is an abundant number, since it is smaller than the sum of its proper divisors (48892448).

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

47815072 is a wasteful number, since it uses less digits than its factorization.

47815072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 47815072 is about 6914.8443221811. The cubic root of 47815072 is about 362.9568005823.

The spelling of 47815072 in words is "forty-seven million, eight hundred fifteen thousand, seventy-two".