247688968 has 16 divisors (see below), whose sum is σ = 466097580. Its totient is φ = 123396288.

The previous prime is 247688957. The next prime is 247688983. The reversal of 247688968 is 869886742.

247688968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 218980804 + 28708164 = 14798^2 + 5358^2 .

It is a super-2 number, since 2×247688968² = 122699649737810048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53671 + ... + 58102.

Almost surely, 2^247688968 is an apocalyptic number.

It is an amenable number.

247688968 is a deficient number, since it is larger than the sum of its proper divisors (218408612).

247688968 is a wasteful number, since it uses less digits than its factorization.

247688968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112056 (or 112052 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 58.

The square root of 247688968 is about 15738.1373739080. The cubic root of 247688968 is about 628.0133673977.

The spelling of 247688968 in words is "two hundred forty-seven million, six hundred eighty-eight thousand, nine hundred sixty-eight".