79979459 has 8 divisors (see below), whose sum is σ = 93875808. Its totient is φ = 66700800.

The previous prime is 79979453. The next prime is 79979483. The reversal of 79979459 is 95497997.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79979459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79979398 and 79979407.

It is not an unprimeable number, because it can be changed into a prime (79979453) 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, 154142 + ... + 154659.

It is an arithmetic number, because the mean of its divisors is an integer number (11734476).

Almost surely, 2^79979459 is an apocalyptic number.

79979459 is a deficient number, since it is larger than the sum of its proper divisors (13896349).

79979459 is a wasteful number, since it uses less digits than its factorization.

79979459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308845.

The product of its digits is 6429780, while the sum is 59.

The square root of 79979459 is about 8943.1235594729. The cubic root of 79979459 is about 430.8500563138.

The spelling of 79979459 in words is "seventy-nine million, nine hundred seventy-nine thousand, four hundred fifty-nine".