79736137 has 16 divisors (see below), whose sum is σ = 91243152. Its totient is φ = 69027840.

The previous prime is 79736131. The next prime is 79736143. The reversal of 79736137 is 73163797.

It is an interprime number because it is at equal distance from previous prime (79736131) and next prime (79736143).

It can be written as a sum of positive squares in 8 ways, for example, as 1784896 + 77951241 = 1336^2 + 8829^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79736137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79736093 and 79736102.

It is not an unprimeable number, because it can be changed into a prime (79736131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92613 + ... + 93469.

It is an arithmetic number, because the mean of its divisors is an integer number (5702697).

Almost surely, 2^79736137 is an apocalyptic number.

It is an amenable number.

79736137 is a deficient number, since it is larger than the sum of its proper divisors (11507015).

79736137 is a wasteful number, since it uses less digits than its factorization.

79736137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308.

The product of its digits is 166698, while the sum is 43.

The square root of 79736137 is about 8929.5093370241. The cubic root of 79736137 is about 430.4126865505.

The spelling of 79736137 in words is "seventy-nine million, seven hundred thirty-six thousand, one hundred thirty-seven".