445279979 has 8 divisors (see below), whose sum is σ = 452042208. Its totient is φ = 438531520.

The previous prime is 445279951. The next prime is 445280027. The reversal of 445279979 is 979972544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445279979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442279979) 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 7 ways as a sum of consecutive naturals, for example, 75029 + ... + 80745.

It is an arithmetic number, because the mean of its divisors is an integer number (56505276).

Almost surely, 2^445279979 is an apocalyptic number.

445279979 is a deficient number, since it is larger than the sum of its proper divisors (6762229).

445279979 is a wasteful number, since it uses less digits than its factorization.

445279979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6885.

The product of its digits is 5715360, while the sum is 56.

The square root of 445279979 is about 21101.6582049847. The cubic root of 445279979 is about 763.6207531548.

The spelling of 445279979 in words is "four hundred forty-five million, two hundred seventy-nine thousand, nine hundred seventy-nine".