79349817 has 4 divisors (see below), whose sum is σ = 105799760. Its totient is φ = 52899876.

The previous prime is 79349807. The next prime is 79349821. The reversal of 79349817 is 71894397.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 79349817 - 2¹⁶ = 79284281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79349807) 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, 13224967 + ... + 13224972.

It is an arithmetic number, because the mean of its divisors is an integer number (26449940).

Almost surely, 2^79349817 is an apocalyptic number.

It is an amenable number.

79349817 is a deficient number, since it is larger than the sum of its proper divisors (26449943).

79349817 is a wasteful number, since it uses less digits than its factorization.

79349817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26449942.

The product of its digits is 381024, while the sum is 48.

The square root of 79349817 is about 8907.8514244457. The cubic root of 79349817 is about 429.7164472761.

The spelling of 79349817 in words is "seventy-nine million, three hundred forty-nine thousand, eight hundred seventeen".