79400771 has 2 divisors, whose sum is σ = 79400772. Its totient is φ = 79400770.

The previous prime is 79400707. The next prime is 79400773. The reversal of 79400771 is 17700497.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79400771 - 2⁶ = 79400707 is a prime.

Together with 79400773, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_4636466 and since 79400771 and 4636466 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (79400773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39700385 + 39700386.

It is an arithmetic number, because the mean of its divisors is an integer number (39700386).

Almost surely, 2^79400771 is an apocalyptic number.

79400771 is a deficient number, since it is larger than the sum of its proper divisors (1).

79400771 is an equidigital number, since it uses as much as digits as its factorization.

79400771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12348, while the sum is 35.

The square root of 79400771 is about 8910.7110266241. The cubic root of 79400771 is about 429.8084075250.

The spelling of 79400771 in words is "seventy-nine million, four hundred thousand, seven hundred seventy-one".