79129406 has 4 divisors (see below), whose sum is σ = 118694112. Its totient is φ = 39564702.

The previous prime is 79129387. The next prime is 79129411. The reversal of 79129406 is 60492197.

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

It is a super-2 number, since 2×79129406² = 12522925787825672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79129406.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19782350 + ... + 19782353.

It is an arithmetic number, because the mean of its divisors is an integer number (29673528).

Almost surely, 2^79129406 is an apocalyptic number.

79129406 is a deficient number, since it is larger than the sum of its proper divisors (39564706).

79129406 is a wasteful number, since it uses less digits than its factorization.

79129406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39564705.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 79129406 is about 8895.4710948887. The cubic root of 79129406 is about 429.3182020234.

It can be divided in two parts, 7912940 and 6, that multiplied together give a triangular number (47477640 = T₉₇₄₄).

The spelling of 79129406 in words is "seventy-nine million, one hundred twenty-nine thousand, four hundred six".