79999450 has 24 divisors (see below), whose sum is σ = 157553532. Its totient is φ = 30117120.

The previous prime is 79999411. The next prime is 79999477. The reversal of 79999450 is 5499997.

It can be written as a sum of positive squares in 6 ways, for example, as 42263001 + 37736449 = 6501^2 + 6143^2 .

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 46209 + ... + 47908.

Almost surely, 2^79999450 is an apocalyptic number.

79999450 is a deficient number, since it is larger than the sum of its proper divisors (77554082).

79999450 is a wasteful number, since it uses less digits than its factorization.

79999450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94146 (or 94141 counting only the distinct ones).

The product of its (nonzero) digits is 918540, while the sum is 52.

The square root of 79999450 is about 8944.2411640116. The cubic root of 79999450 is about 430.8859505549.

The spelling of 79999450 in words is "seventy-nine million, nine hundred ninety-nine thousand, four hundred fifty".