79402105 has 4 divisors (see below), whose sum is σ = 95282532. Its totient is φ = 63521680.

The previous prime is 79402079. The next prime is 79402139. The reversal of 79402105 is 50120497.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63297936 + 16104169 = 7956^2 + 4013^2 .

It is not a de Polignac number, because 79402105 - 2¹⁷ = 79271033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7940206 + ... + 7940215.

It is an arithmetic number, because the mean of its divisors is an integer number (23820633).

Almost surely, 2^79402105 is an apocalyptic number.

It is an amenable number.

79402105 is a deficient number, since it is larger than the sum of its proper divisors (15880427).

79402105 is a wasteful number, since it uses less digits than its factorization.

79402105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15880426.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 79402105 is about 8910.7858800445. The cubic root of 79402105 is about 429.8108145596.

It can be divided in two parts, 79402 and 105, that added together give a cube (79507 = 43³).

The spelling of 79402105 in words is "seventy-nine million, four hundred two thousand, one hundred five".