7287264 has 36 divisors (see below), whose sum is σ = 20723976. Its totient is φ = 2428992.

The previous prime is 7287233. The next prime is 7287277. The reversal of 7287264 is 4627827.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×7287264³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12364 + ... + 12939.

It is an arithmetic number, because the mean of its divisors is an integer number (575666).

Almost surely, 2^7287264 is an apocalyptic number.

It is an amenable number.

7287264 is an abundant number, since it is smaller than the sum of its proper divisors (13436712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7287264 is a wasteful number, since it uses less digits than its factorization.

7287264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25319 (or 25308 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 7287264 is about 2699.4932857853. The cubic root of 7287264 is about 193.8748617288.

The spelling of 7287264 in words is "seven million, two hundred eighty-seven thousand, two hundred sixty-four".