455920391 has 2 divisors, whose sum is σ = 455920392. Its totient is φ = 455920390.

The previous prime is 455920337. The next prime is 455920453. The reversal of 455920391 is 193029554.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 455920391 - 2¹⁰ = 455919367 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (455920301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227960195 + 227960196.

It is an arithmetic number, because the mean of its divisors is an integer number (227960196).

Almost surely, 2^455920391 is an apocalyptic number.

455920391 is a deficient number, since it is larger than the sum of its proper divisors (1).

455920391 is an equidigital number, since it uses as much as digits as its factorization.

455920391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 455920391 is about 21352.2924062031. The cubic root of 455920391 is about 769.6554319341.

The spelling of 455920391 in words is "four hundred fifty-five million, nine hundred twenty thousand, three hundred ninety-one".