6457656 has 16 divisors (see below), whose sum is σ = 16144200. Its totient is φ = 2152544.

The previous prime is 6457631. The next prime is 6457657. The reversal of 6457656 is 6567546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6457657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134511 + ... + 134558.

Almost surely, 2^6457656 is an apocalyptic number.

It is an amenable number.

6457656 is an abundant number, since it is smaller than the sum of its proper divisors (9686544).

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

6457656 is a wasteful number, since it uses less digits than its factorization.

6457656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269078 (or 269074 counting only the distinct ones).

The product of its digits is 151200, while the sum is 39.

The square root of 6457656 is about 2541.1918463587. The cubic root of 6457656 is about 186.2194196298.

The spelling of 6457656 in words is "six million, four hundred fifty-seven thousand, six hundred fifty-six".