454969979 has 4 divisors (see below), whose sum is σ = 458996376. Its totient is φ = 450943584.

The previous prime is 454969973. The next prime is 454969993. The reversal of 454969979 is 979969454.

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-454969979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (454969973) 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, 2013029 + ... + 2013254.

It is an arithmetic number, because the mean of its divisors is an integer number (114749094).

Almost surely, 2^454969979 is an apocalyptic number.

454969979 is a deficient number, since it is larger than the sum of its proper divisors (4026397).

454969979 is a wasteful number, since it uses less digits than its factorization.

454969979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026396.

The product of its digits is 22044960, while the sum is 62.

The square root of 454969979 is about 21330.0252929995. The cubic root of 454969979 is about 769.1202517796.

The spelling of 454969979 in words is "four hundred fifty-four million, nine hundred sixty-nine thousand, nine hundred seventy-nine".