79672149 has 24 divisors (see below), whose sum is σ = 128269440. Its totient is φ = 47357568.

The previous prime is 79672067. The next prime is 79672157. The reversal of 79672149 is 94127697.

It is not a de Polignac number, because 79672149 - 2⁹ = 79671637 is a prime.

It is a super-3 number, since 3×79672149³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79672189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10797 + ... + 16610.

It is an arithmetic number, because the mean of its divisors is an integer number (5344560).

Almost surely, 2^79672149 is an apocalyptic number.

It is an amenable number.

79672149 is a deficient number, since it is larger than the sum of its proper divisors (48597291).

79672149 is a wasteful number, since it uses less digits than its factorization.

79672149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27449 (or 27446 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 79672149 is about 8925.9256662825. The cubic root of 79672149 is about 430.2975207944.

The spelling of 79672149 in words is "seventy-nine million, six hundred seventy-two thousand, one hundred forty-nine".