247080664 has 16 divisors (see below), whose sum is σ = 478221120. Its totient is φ = 119555040.

The previous prime is 247080629. The next prime is 247080679. The reversal of 247080664 is 466080742.

It is a super-2 number, since 2×247080664² = 122097709045361792, which contains 22 as substring.

It is a congruent number.

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, 497899 + ... + 498394.

It is an arithmetic number, because the mean of its divisors is an integer number (29888820).

Almost surely, 2^247080664 is an apocalyptic number.

It is an amenable number.

247080664 is a deficient number, since it is larger than the sum of its proper divisors (231140456).

247080664 is a wasteful number, since it uses less digits than its factorization.

247080664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996330 (or 996326 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 247080664 is about 15718.7996997226. The cubic root of 247080664 is about 627.4988293286.

The spelling of 247080664 in words is "two hundred forty-seven million, eighty thousand, six hundred sixty-four".