79499137 has 8 divisors (see below), whose sum is σ = 82569600. Its totient is φ = 76486224.

The previous prime is 79499129. The next prime is 79499141. The reversal of 79499137 is 73199497.

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 79499137 - 2³ = 79499129 is a prime.

It is a super-2 number, since 2×79499137² = 12640225567489538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79499177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11562 + ... + 17107.

It is an arithmetic number, because the mean of its divisors is an integer number (10321200).

Almost surely, 2^79499137 is an apocalyptic number.

It is an amenable number.

79499137 is a deficient number, since it is larger than the sum of its proper divisors (3070463).

79499137 is a wasteful number, since it uses less digits than its factorization.

79499137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28775.

The product of its digits is 428652, while the sum is 49.

The square root of 79499137 is about 8916.2288552953. The cubic root of 79499137 is about 429.9858243028.

The spelling of 79499137 in words is "seventy-nine million, four hundred ninety-nine thousand, one hundred thirty-seven".