79929329 has 2 divisors, whose sum is σ = 79929330. Its totient is φ = 79929328.

The previous prime is 79929271. The next prime is 79929383. The reversal of 79929329 is 92392997.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51552400 + 28376929 = 7180^2 + 5327^2 .

It is a cyclic number.

It is not a de Polignac number, because 79929329 - 2¹² = 79925233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79920329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39964664 + 39964665.

It is an arithmetic number, because the mean of its divisors is an integer number (39964665).

Almost surely, 2^79929329 is an apocalyptic number.

It is an amenable number.

79929329 is a deficient number, since it is larger than the sum of its proper divisors (1).

79929329 is an equidigital number, since it uses as much as digits as its factorization.

79929329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 551124, while the sum is 50.

The square root of 79929329 is about 8940.3204081286. The cubic root of 79929329 is about 430.7600205816.

The spelling of 79929329 in words is "seventy-nine million, nine hundred twenty-nine thousand, three hundred twenty-nine".