6464657 has 4 divisors (see below), whose sum is σ = 6481920. Its totient is φ = 6447396.

The previous prime is 6464639. The next prime is 6464687. The reversal of 6464657 is 7564646.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6464657 - 2⁸ = 6464401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6464657.

It is not an unprimeable number, because it can be changed into a prime (6464687) 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, 8057 + ... + 8822.

It is an arithmetic number, because the mean of its divisors is an integer number (1620480).

Almost surely, 2^6464657 is an apocalyptic number.

It is an amenable number.

6464657 is a deficient number, since it is larger than the sum of its proper divisors (17263).

6464657 is a wasteful number, since it uses less digits than its factorization.

6464657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17262.

The product of its digits is 120960, while the sum is 38.

The square root of 6464657 is about 2542.5689764488. The cubic root of 6464657 is about 186.2866912684.

The spelling of 6464657 in words is "six million, four hundred sixty-four thousand, six hundred fifty-seven".