454070891 has 2 divisors, whose sum is σ = 454070892. Its totient is φ = 454070890.

The previous prime is 454070849. The next prime is 454070909. The reversal of 454070891 is 198070454.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-454070891 is a prime.

It is not a weakly prime, because it can be changed into another prime (454070801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227035445 + 227035446.

It is an arithmetic number, because the mean of its divisors is an integer number (227035446).

Almost surely, 2^454070891 is an apocalyptic number.

454070891 is a deficient number, since it is larger than the sum of its proper divisors (1).

454070891 is an equidigital number, since it uses as much as digits as its factorization.

454070891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 454070891 is about 21308.9392274698. The cubic root of 454070891 is about 768.6132858784.

The spelling of 454070891 in words is "four hundred fifty-four million, seventy thousand, eight hundred ninety-one".