79129199 has 8 divisors (see below), whose sum is σ = 81700608. Its totient is φ = 76580640.

The previous prime is 79129189. The next prime is 79129229. The reversal of 79129199 is 99192197.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 79129199 - 2¹² = 79125103 is a prime.

It is a super-2 number, since 2×79129199² = 12522860268763202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79129189) 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, 1469 + ... + 12665.

It is an arithmetic number, because the mean of its divisors is an integer number (10212576).

Almost surely, 2^79129199 is an apocalyptic number.

79129199 is a deficient number, since it is larger than the sum of its proper divisors (2571409).

79129199 is a wasteful number, since it uses less digits than its factorization.

79129199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11425.

The product of its digits is 91854, while the sum is 47.

The square root of 79129199 is about 8895.4594597469. The cubic root of 79129199 is about 429.3178276622.

The spelling of 79129199 in words is "seventy-nine million, one hundred twenty-nine thousand, one hundred ninety-nine".