247047872 has 14 divisors (see below), whose sum is σ = 490235748. Its totient is φ = 123523904.

The previous prime is 247047817. The next prime is 247047877. The reversal of 247047872 is 278740742.

247047872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247047872² = 122065302119456768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247047877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1929998 + ... + 1930125.

Almost surely, 2^247047872 is an apocalyptic number.

It is an amenable number.

247047872 is a deficient number, since it is larger than the sum of its proper divisors (243187876).

247047872 is an equidigital number, since it uses as much as digits as its factorization.

247047872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3860135 (or 3860125 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 41.

The square root of 247047872 is about 15717.7565829224. The cubic root of 247047872 is about 627.4710680142.

The spelling of 247047872 in words is "two hundred forty-seven million, forty-seven thousand, eight hundred seventy-two".