455972891 has 12 divisors (see below), whose sum is σ = 502439952. Its totient is φ = 413490000.

The previous prime is 455972873. The next prime is 455972917. The reversal of 455972891 is 198279554.

It is not a de Polignac number, because 455972891 - 2¹⁸ = 455710747 is a prime.

It is a super-2 number, since 2×455972891² = 415822554653795762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (455972801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46466 + ... + 55416.

It is an arithmetic number, because the mean of its divisors is an integer number (41869996).

Almost surely, 2^455972891 is an apocalyptic number.

455972891 is a deficient number, since it is larger than the sum of its proper divisors (46467061).

455972891 is a wasteful number, since it uses less digits than its factorization.

455972891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9394 (or 9383 counting only the distinct ones).

The product of its digits is 907200, while the sum is 50.

The square root of 455972891 is about 21353.5217470093. The cubic root of 455972891 is about 769.6849731728.

The spelling of 455972891 in words is "four hundred fifty-five million, nine hundred seventy-two thousand, eight hundred ninety-one".