79698929 has 2 divisors, whose sum is σ = 79698930. Its totient is φ = 79698928.

The previous prime is 79698919. The next prime is 79698943. The reversal of 79698929 is 92989697.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73068304 + 6630625 = 8548^2 + 2575^2 .

It is an emirp because it is prime and its reverse (92989697) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79698929 - 2¹² = 79694833 is a prime.

It is not a weakly prime, because it can be changed into another prime (79698919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39849464 + 39849465.

It is an arithmetic number, because the mean of its divisors is an integer number (39849465).

Almost surely, 2^79698929 is an apocalyptic number.

It is an amenable number.

79698929 is a deficient number, since it is larger than the sum of its proper divisors (1).

79698929 is an equidigital number, since it uses as much as digits as its factorization.

79698929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 59.

The square root of 79698929 is about 8927.4256647703. The cubic root of 79698929 is about 430.3457270031.

The spelling of 79698929 in words is "seventy-nine million, six hundred ninety-eight thousand, nine hundred twenty-nine".