79171489 has 8 divisors (see below), whose sum is σ = 82251008. Its totient is φ = 76124880.

The previous prime is 79171457. The next prime is 79171501. The reversal of 79171489 is 98417197.

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

It is a cyclic number.

It is not a de Polignac number, because 79171489 - 2⁵ = 79171457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79171409) 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, 3267 + ... + 13000.

It is an arithmetic number, because the mean of its divisors is an integer number (10281376).

Almost surely, 2^79171489 is an apocalyptic number.

It is an amenable number.

79171489 is a deficient number, since it is larger than the sum of its proper divisors (3079519).

79171489 is a wasteful number, since it uses less digits than its factorization.

79171489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16455.

The product of its digits is 127008, while the sum is 46.

The square root of 79171489 is about 8897.8361976382. The cubic root of 79171489 is about 429.3942959263.

The spelling of 79171489 in words is "seventy-nine million, one hundred seventy-one thousand, four hundred eighty-nine".