454790989 has 4 divisors (see below), whose sum is σ = 454877280. Its totient is φ = 454704700.

The previous prime is 454790951. The next prime is 454791031. The reversal of 454790989 is 989097454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 989097454 = 2 ⋅494548727.

It is a cyclic number.

It is not a de Polignac number, because 454790989 - 2²⁷ = 320573261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454790389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34687 + ... + 45964.

It is an arithmetic number, because the mean of its divisors is an integer number (113719320).

Almost surely, 2^454790989 is an apocalyptic number.

It is an amenable number.

454790989 is a deficient number, since it is larger than the sum of its proper divisors (86291).

454790989 is an equidigital number, since it uses as much as digits as its factorization.

454790989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86290.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 454790989 is about 21325.8291515242. The cubic root of 454790989 is about 769.0193785373.

The spelling of 454790989 in words is "four hundred fifty-four million, seven hundred ninety thousand, nine hundred eighty-nine".