79171394 has 8 divisors (see below), whose sum is σ = 118813068. Its totient is φ = 39567040.

The previous prime is 79171331. The next prime is 79171399. The reversal of 79171394 is 49317197.

It can be written as a sum of positive squares in 2 ways, for example, as 78765625 + 405769 = 8875^2 + 637^2 .

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

It is not an unprimeable number, because it can be changed into a prime (79171399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3227 + ... + 12990.

Almost surely, 2^79171394 is an apocalyptic number.

79171394 is a deficient number, since it is larger than the sum of its proper divisors (39641674).

79171394 is a wasteful number, since it uses less digits than its factorization.

79171394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18660.

The product of its digits is 47628, while the sum is 41.

The square root of 79171394 is about 8897.8308592600. The cubic root of 79171394 is about 429.3941241790.

The spelling of 79171394 in words is "seventy-nine million, one hundred seventy-one thousand, three hundred ninety-four".