247088672 has 12 divisors (see below), whose sum is σ = 486455886. Its totient is φ = 123544320.

The previous prime is 247088669. The next prime is 247088687. The reversal of 247088672 is 276880742.

It can be written as a sum of positive squares in only one way, i.e., 178596496 + 68492176 = 13364^2 + 8276^2 .

It is a super-2 number, since 2×247088672² = 122105623661447168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3860729 + ... + 3860792.

Almost surely, 2^247088672 is an apocalyptic number.

It is an amenable number.

247088672 is a deficient number, since it is larger than the sum of its proper divisors (239367214).

247088672 is an equidigital number, since it uses as much as digits as its factorization.

247088672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7721531 (or 7721523 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 247088672 is about 15719.0544244875. The cubic root of 247088672 is about 627.5056084323.

The spelling of 247088672 in words is "two hundred forty-seven million, eighty-eight thousand, six hundred seventy-two".