7283664 has 30 divisors (see below), whose sum is σ = 20384546. Its totient is φ = 2427840.

The previous prime is 7283659. The next prime is 7283693. The reversal of 7283664 is 4663827.

It can be written as a sum of positive squares in only one way, i.e., 6656400 + 627264 = 2580^2 + 792^2 .

It is a super-2 number, since 2×7283664² = 106103522529792, which contains 22 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, 25147 + ... + 25434.

Almost surely, 2^7283664 is an apocalyptic number.

It is an amenable number.

7283664 is an abundant number, since it is smaller than the sum of its proper divisors (13100882).

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

7283664 is a wasteful number, since it uses less digits than its factorization.

7283664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50595 (or 50586 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 7283664 is about 2698.8264116093. The cubic root of 7283664 is about 193.8429309308.

It can be divided in two parts, 72836 and 64, that added together give a square (72900 = 270²).

The spelling of 7283664 in words is "seven million, two hundred eighty-three thousand, six hundred sixty-four".