79985349 has 18 divisors (see below), whose sum is σ = 116630930. Its totient is φ = 52821216.

The previous prime is 79985341. The next prime is 79985351. The reversal of 79985349 is 94358997.

It can be written as a sum of positive squares in 3 ways, for example, as 74080449 + 5904900 = 8607^2 + 2430^2 .

It is not a de Polignac number, because 79985349 - 2³ = 79985341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79985295 and 79985304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79985341) 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 17 ways as a sum of consecutive naturals, for example, 349167 + ... + 349395.

Almost surely, 2^79985349 is an apocalyptic number.

It is an amenable number.

79985349 is a deficient number, since it is larger than the sum of its proper divisors (36645581).

79985349 is a wasteful number, since it uses less digits than its factorization.

79985349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 429 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 79985349 is about 8943.4528566991. The cubic root of 79985349 is about 430.8606325483.

The spelling of 79985349 in words is "seventy-nine million, nine hundred eighty-five thousand, three hundred forty-nine".