456421679 has 16 divisors (see below), whose sum is σ = 526825728. Its totient is φ = 387338112.

The previous prime is 456421613. The next prime is 456421709. The reversal of 456421679 is 976124654.

It is a de Polignac number, because none of the positive numbers 2^k-456421679 is a prime.

It is a super-2 number, since 2×456421679² = 416641498122358082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (456421079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383924 + ... + 385110.

It is an arithmetic number, because the mean of its divisors is an integer number (32926608).

Almost surely, 2^456421679 is an apocalyptic number.

456421679 is a deficient number, since it is larger than the sum of its proper divisors (70404049).

456421679 is a wasteful number, since it uses less digits than its factorization.

456421679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694.

The product of its digits is 362880, while the sum is 44.

The square root of 456421679 is about 21364.0276867448. The cubic root of 456421679 is about 769.9374093161.

The spelling of 456421679 in words is "four hundred fifty-six million, four hundred twenty-one thousand, six hundred seventy-nine".