456691 has 4 divisors (see below), whose sum is σ = 469072. Its totient is φ = 444312.

The previous prime is 456683. The next prime is 456697. The reversal of 456691 is 196654.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 196654 = 2 ⋅98327.

It is a cyclic number.

It is not a de Polignac number, because 456691 - 2³ = 456683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (456697) 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, 6135 + ... + 6208.

It is an arithmetic number, because the mean of its divisors is an integer number (117268).

2⁴⁵⁶⁶⁹¹ is an apocalyptic number.

456691 is a deficient number, since it is larger than the sum of its proper divisors (12381).

456691 is a wasteful number, since it uses less digits than its factorization.

456691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12380.

The product of its digits is 6480, while the sum is 31.

The square root of 456691 is about 675.7891683062. The cubic root of 456691 is about 77.0088818674.

The spelling of 456691 in words is "four hundred fifty-six thousand, six hundred ninety-one".