79402799 has 4 divisors (see below), whose sum is σ = 90746064. Its totient is φ = 68059536.

The previous prime is 79402793. The next prime is 79402819. The reversal of 79402799 is 99720497.

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

It is a cyclic number.

It is not a de Polignac number, because 79402799 - 2¹² = 79398703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79402793) 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 3 ways as a sum of consecutive naturals, for example, 5671622 + ... + 5671635.

It is an arithmetic number, because the mean of its divisors is an integer number (22686516).

Almost surely, 2^79402799 is an apocalyptic number.

79402799 is a deficient number, since it is larger than the sum of its proper divisors (11343265).

79402799 is a wasteful number, since it uses less digits than its factorization.

79402799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11343264.

The product of its (nonzero) digits is 285768, while the sum is 47.

The square root of 79402799 is about 8910.8248215303. The cubic root of 79402799 is about 429.8120667843.

The spelling of 79402799 in words is "seventy-nine million, four hundred two thousand, seven hundred ninety-nine".