247264 has 12 divisors (see below), whose sum is σ = 486864. Its totient is φ = 123616.

The previous prime is 247259. The next prime is 247279. The reversal of 247264 is 462742.

247264 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 2×247264² = 122278971392, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3832 + ... + 3895.

It is an arithmetic number, because the mean of its divisors is an integer number (40572).

2²⁴⁷²⁶⁴ is an apocalyptic number.

It is an amenable number.

247264 is a deficient number, since it is larger than the sum of its proper divisors (239600).

247264 is an equidigital number, since it uses as much as digits as its factorization.

247264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7737 (or 7729 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 247264 is about 497.2564730599. The cubic root of 247264 is about 62.7653994152.

The spelling of 247264 in words is "two hundred forty-seven thousand, two hundred sixty-four".