47997324 has 36 divisors (see below), whose sum is σ = 128465064. Its totient is φ = 15057792.

The previous prime is 47997289. The next prime is 47997337. The reversal of 47997324 is 42379974.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×47997324² = 4607486222321952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47997324.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38602 + ... + 39825.

It is an arithmetic number, because the mean of its divisors is an integer number (3568474).

Almost surely, 2^47997324 is an apocalyptic number.

It is an amenable number.

47997324 is an abundant number, since it is smaller than the sum of its proper divisors (80467740).

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

47997324 is a wasteful number, since it uses less digits than its factorization.

47997324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78454 (or 78449 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 47997324 is about 6928.0101039187. The cubic root of 47997324 is about 363.4173648094.

The spelling of 47997324 in words is "forty-seven million, nine hundred ninety-seven thousand, three hundred twenty-four".