79429897 has 2 divisors, whose sum is σ = 79429898. Its totient is φ = 79429896.

The previous prime is 79429891. The next prime is 79429951. The reversal of 79429897 is 79892497.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77951241 + 1478656 = 8829^2 + 1216^2 .

It is a cyclic number.

It is not a de Polignac number, because 79429897 - 2⁷ = 79429769 is a prime.

It is not a weakly prime, because it can be changed into another prime (79429891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39714948 + 39714949.

It is an arithmetic number, because the mean of its divisors is an integer number (39714949).

Almost surely, 2^79429897 is an apocalyptic number.

It is an amenable number.

79429897 is a deficient number, since it is larger than the sum of its proper divisors (1).

79429897 is an equidigital number, since it uses as much as digits as its factorization.

79429897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 55.

The square root of 79429897 is about 8912.3452020217. The cubic root of 79429897 is about 429.8609555844.

The spelling of 79429897 in words is "seventy-nine million, four hundred twenty-nine thousand, eight hundred ninety-seven".