6456677 has 4 divisors (see below), whose sum is σ = 6461760. Its totient is φ = 6451596.

The previous prime is 6456661. The next prime is 6456679. The reversal of 6456677 is 7766546.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7766546 = 2 ⋅3883273.

It is a cyclic number.

It is not a de Polignac number, because 6456677 - 2⁴ = 6456661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6456679) 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, 1268 + ... + 3810.

It is an arithmetic number, because the mean of its divisors is an integer number (1615440).

Almost surely, 2^6456677 is an apocalyptic number.

It is an amenable number.

6456677 is a deficient number, since it is larger than the sum of its proper divisors (5083).

6456677 is a wasteful number, since it uses less digits than its factorization.

6456677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5082.

The product of its digits is 211680, while the sum is 41.

The square root of 6456677 is about 2540.9992129082. Note that the first 3 decimals coincide. The cubic root of 6456677 is about 186.2100086802.

The spelling of 6456677 in words is "six million, four hundred fifty-six thousand, six hundred seventy-seven".