79699537 has 2 divisors, whose sum is σ = 79699538. Its totient is φ = 79699536.

The previous prime is 79699507. The next prime is 79699567. The reversal of 79699537 is 73599697.

It is a balanced prime because it is at equal distance from previous prime (79699507) and next prime (79699567).

It can be written as a sum of positive squares in only one way, i.e., 69739201 + 9960336 = 8351^2 + 3156^2 .

It is a cyclic number.

It is not a de Polignac number, because 79699537 - 2⁷ = 79699409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79699507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39849768 + 39849769.

It is an arithmetic number, because the mean of its divisors is an integer number (39849769).

Almost surely, 2^79699537 is an apocalyptic number.

It is an amenable number.

79699537 is a deficient number, since it is larger than the sum of its proper divisors (1).

79699537 is an equidigital number, since it uses as much as digits as its factorization.

79699537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3214890, while the sum is 55.

The square root of 79699537 is about 8927.4597170752. The cubic root of 79699537 is about 430.3468213279.

The spelling of 79699537 in words is "seventy-nine million, six hundred ninety-nine thousand, five hundred thirty-seven".