79949290 has 16 divisors (see below), whose sum is σ = 144530568. Its totient is φ = 31841536.

The previous prime is 79949263. The next prime is 79949297. The reversal of 79949290 is 9294997.

It can be written as a sum of positive squares in 4 ways, for example, as 44796249 + 35153041 = 6693^2 + 5929^2 .

It is not an unprimeable number, because it can be changed into a prime (79949297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14827 + ... + 19486.

Almost surely, 2^79949290 is an apocalyptic number.

79949290 is a deficient number, since it is larger than the sum of its proper divisors (64581278).

79949290 is a wasteful number, since it uses less digits than its factorization.

79949290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34553.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 79949290 is about 8941.4366854550. The cubic root of 79949290 is about 430.7958759437.

The spelling of 79949290 in words is "seventy-nine million, nine hundred forty-nine thousand, two hundred ninety".