79313849 has 2 divisors, whose sum is σ = 79313850. Its totient is φ = 79313848.

The previous prime is 79313833. The next prime is 79313873. The reversal of 79313849 is 94831397.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63313849 + 16000000 = 7957^2 + 4000^2 .

It is an emirp because it is prime and its reverse (94831397) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79313849 - 2⁴ = 79313833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79313149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39656924 + 39656925.

It is an arithmetic number, because the mean of its divisors is an integer number (39656925).

Almost surely, 2^79313849 is an apocalyptic number.

It is an amenable number.

79313849 is a deficient number, since it is larger than the sum of its proper divisors (1).

79313849 is an equidigital number, since it uses as much as digits as its factorization.

79313849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 79313849 is about 8905.8323024858. The cubic root of 79313849 is about 429.6515096044.

The spelling of 79313849 in words is "seventy-nine million, three hundred thirteen thousand, eight hundred forty-nine".