456664645 has 8 divisors (see below), whose sum is σ = 548503704. Its totient is φ = 364994304.

The previous prime is 456664633. The next prime is 456664657. The reversal of 456664645 is 546466654.

It is an interprime number because it is at equal distance from previous prime (456664633) and next prime (456664657).

It can be written as a sum of positive squares in 4 ways, for example, as 77739489 + 378925156 = 8817^2 + 19466^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 456664645 - 2⁵ = 456664613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 456664595 and 456664604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36144 + ... + 47113.

It is an arithmetic number, because the mean of its divisors is an integer number (68562963).

Almost surely, 2^456664645 is an apocalyptic number.

It is an amenable number.

456664645 is a deficient number, since it is larger than the sum of its proper divisors (91839059).

456664645 is a wasteful number, since it uses less digits than its factorization.

456664645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84359.

The product of its digits is 2073600, while the sum is 46.

The square root of 456664645 is about 21369.7132643375. The cubic root of 456664645 is about 770.0740048060.

The spelling of 456664645 in words is "four hundred fifty-six million, six hundred sixty-four thousand, six hundred forty-five".