656748 has 30 divisors (see below), whose sum is σ = 1717716. Its totient is φ = 218808.

The previous prime is 656741. The next prime is 656749. The reversal of 656748 is 847656.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (656741) by changing a digit.

656748 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 690 + ... + 1337.

2⁶⁵⁶⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

656748 is an abundant number, since it is smaller than the sum of its proper divisors (1060968).

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

656748 is a wasteful number, since it uses less digits than its factorization.

656748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043 (or 2032 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 656748 is about 810.3999012833. The cubic root of 656748 is about 86.9226422946.

The spelling of 656748 in words is "six hundred fifty-six thousand, seven hundred forty-eight".