17079979 has 6 divisors (see below), whose sum is σ = 19868604. Its totient is φ = 14639940.

The previous prime is 17079967. The next prime is 17079983. The reversal of 17079979 is 97997071.

It is a happy number.

It is not a de Polignac number, because 17079979 - 2¹⁵ = 17047211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 348571 = 17079979 / (1 + 7 + 0 + 7 + 9 + 9 + 7 + 9).

It is not an unprimeable number, because it can be changed into a prime (17079919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174237 + ... + 174334.

It is an arithmetic number, because the mean of its divisors is an integer number (3311434).

Almost surely, 2^17079979 is an apocalyptic number.

17079979 is a deficient number, since it is larger than the sum of its proper divisors (2788625).

17079979 is an equidigital number, since it uses as much as digits as its factorization.

17079979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348585 (or 348578 counting only the distinct ones).

The product of its (nonzero) digits is 250047, while the sum is 49.

The square root of 17079979 is about 4132.7931233005. The cubic root of 17079979 is about 257.5307607705.

The spelling of 17079979 in words is "seventeen million, seventy-nine thousand, nine hundred seventy-nine".