247664996 has 24 divisors (see below), whose sum is σ = 444407040. Its totient is φ = 120712832.

The previous prime is 247664987. The next prime is 247665001. The reversal of 247664996 is 699466742.

247664996 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247664996² = 122675900487360032, 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, 46940 + ... + 51948.

It is an arithmetic number, because the mean of its divisors is an integer number (18516960).

Almost surely, 2^247664996 is an apocalyptic number.

It is an amenable number.

247664996 is a deficient number, since it is larger than the sum of its proper divisors (196742044).

247664996 is a wasteful number, since it uses less digits than its factorization.

247664996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323 (or 5321 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 53.

The square root of 247664996 is about 15737.3757659910. The cubic root of 247664996 is about 627.9931064736.

The spelling of 247664996 in words is "two hundred forty-seven million, six hundred sixty-four thousand, nine hundred ninety-six".