79171449 has 16 divisors (see below), whose sum is σ = 120849408. Its totient is φ = 45163152.

The previous prime is 79171439. The next prime is 79171457. The reversal of 79171449 is 94417197.

It is not a de Polignac number, because 79171449 - 2⁷ = 79171321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79171449.

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 15 ways as a sum of consecutive naturals, for example, 10674 + ... + 16500.

It is an arithmetic number, because the mean of its divisors is an integer number (7553088).

Almost surely, 2^79171449 is an apocalyptic number.

It is an amenable number.

79171449 is a deficient number, since it is larger than the sum of its proper divisors (41677959).

79171449 is a wasteful number, since it uses less digits than its factorization.

79171449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6484.

The product of its digits is 63504, while the sum is 42.

The square root of 79171449 is about 8897.8339499004. The cubic root of 79171449 is about 429.3942236117.

The spelling of 79171449 in words is "seventy-nine million, one hundred seventy-one thousand, four hundred forty-nine".