79249829 has 2 divisors, whose sum is σ = 79249830. Its totient is φ = 79249828.

The previous prime is 79249799. The next prime is 79249861. The reversal of 79249829 is 92894297.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79245604 + 4225 = 8902^2 + 65^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79249829 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79249879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39624914 + 39624915.

It is an arithmetic number, because the mean of its divisors is an integer number (39624915).

Almost surely, 2^79249829 is an apocalyptic number.

It is an amenable number.

79249829 is a deficient number, since it is larger than the sum of its proper divisors (1).

79249829 is an equidigital number, since it uses as much as digits as its factorization.

79249829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 50.

The square root of 79249829 is about 8902.2373030604. The cubic root of 79249829 is about 429.5358774498.

The spelling of 79249829 in words is "seventy-nine million, two hundred forty-nine thousand, eight hundred twenty-nine".