79405600 has 36 divisors (see below), whose sum is σ = 193850874. Its totient is φ = 31761920.

The previous prime is 79405559. The next prime is 79405603. The reversal of 79405600 is 650497.

It can be written as a sum of positive squares in 3 ways, for example, as 47279376 + 32126224 = 6876^2 + 5668^2 .

It is a super-2 number, since 2×79405600² = 12610498622720000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79405603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48829 + ... + 50428.

Almost surely, 2^79405600 is an apocalyptic number.

It is an amenable number.

79405600 is an abundant number, since it is smaller than the sum of its proper divisors (114445274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79405600 is a wasteful number, since it uses less digits than its factorization.

79405600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99277 (or 99264 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 79405600 is about 8910.9819885353. The cubic root of 79405600 is about 429.8171207180.

The spelling of 79405600 in words is "seventy-nine million, four hundred five thousand, six hundred".