79170459 has 4 divisors (see below), whose sum is σ = 105560616. Its totient is φ = 52780304.

The previous prime is 79170457. The next prime is 79170461. The reversal of 79170459 is 95407197.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (79170457) and next prime (79170461).

It is a cyclic number.

It is not a de Polignac number, because 79170459 - 2¹ = 79170457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79170459.

It is not an unprimeable number, because it can be changed into a prime (79170457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13195074 + ... + 13195079.

It is an arithmetic number, because the mean of its divisors is an integer number (26390154).

Almost surely, 2^79170459 is an apocalyptic number.

79170459 is a deficient number, since it is larger than the sum of its proper divisors (26390157).

79170459 is a wasteful number, since it uses less digits than its factorization.

79170459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26390156.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 79170459 is about 8897.7783182096. The cubic root of 79170459 is about 429.3924338164.

The spelling of 79170459 in words is "seventy-nine million, one hundred seventy thousand, four hundred fifty-nine".