79769713 has 2 divisors, whose sum is σ = 79769714. Its totient is φ = 79769712.

The previous prime is 79769653. The next prime is 79769719. The reversal of 79769713 is 31796797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65804544 + 13965169 = 8112^2 + 3737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79769713 is a prime.

It is a super-2 number, since 2×79769713² = 12726414224204738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79769719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39884856 + 39884857.

It is an arithmetic number, because the mean of its divisors is an integer number (39884857).

Almost surely, 2^79769713 is an apocalyptic number.

It is an amenable number.

79769713 is a deficient number, since it is larger than the sum of its proper divisors (1).

79769713 is an equidigital number, since it uses as much as digits as its factorization.

79769713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 500094, while the sum is 49.

The square root of 79769713 is about 8931.3891976556. The cubic root of 79769713 is about 430.4730920702.

It can be divided in two parts, 7976 and 9713, that added together give a square (17689 = 133²).

The spelling of 79769713 in words is "seventy-nine million, seven hundred sixty-nine thousand, seven hundred thirteen".