455330891 has 4 divisors (see below), whose sum is σ = 455661984. Its totient is φ = 454999800.

The previous prime is 455330879. The next prime is 455330893. The reversal of 455330891 is 198033554.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-455330891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (455330893) 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, 163475 + ... + 166236.

It is an arithmetic number, because the mean of its divisors is an integer number (113915496).

Almost surely, 2^455330891 is an apocalyptic number.

455330891 is a deficient number, since it is larger than the sum of its proper divisors (331093).

455330891 is a wasteful number, since it uses less digits than its factorization.

455330891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331092.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 455330891 is about 21338.4838027447. The cubic root of 455330891 is about 769.3235702211.

The spelling of 455330891 in words is "four hundred fifty-five million, three hundred thirty thousand, eight hundred ninety-one".