454487979 has 48 divisors (see below), whose sum is σ = 720728064. Its totient is φ = 253566720.

The previous prime is 454487953. The next prime is 454487989. The reversal of 454487979 is 979784454.

It is a happy number.

It is not a de Polignac number, because 454487979 - 2⁷ = 454487851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454487939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 289254 + ... + 290820.

It is an arithmetic number, because the mean of its divisors is an integer number (15015168).

Almost surely, 2^454487979 is an apocalyptic number.

454487979 is a deficient number, since it is larger than the sum of its proper divisors (266240085).

454487979 is a wasteful number, since it uses less digits than its factorization.

454487979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656 (or 1645 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 57.

The square root of 454487979 is about 21318.7236719275. The cubic root of 454487979 is about 768.8485511041.

The spelling of 454487979 in words is "four hundred fifty-four million, four hundred eighty-seven thousand, nine hundred seventy-nine".