79927149 has 16 divisors (see below), whose sum is σ = 113030208. Its totient is φ = 50065152.

The previous prime is 79927147. The next prime is 79927151. The reversal of 79927149 is 94172997.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (79927147) and next prime (79927151).

It is not a de Polignac number, because 79927149 - 2¹ = 79927147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79927098 and 79927107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79927147) 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, 43834 + ... + 45620.

It is an arithmetic number, because the mean of its divisors is an integer number (7064388).

Almost surely, 2^79927149 is an apocalyptic number.

It is an amenable number.

79927149 is a deficient number, since it is larger than the sum of its proper divisors (33103059).

79927149 is a wasteful number, since it uses less digits than its factorization.

79927149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684.

The product of its digits is 285768, while the sum is 48.

The square root of 79927149 is about 8940.1984877295. The cubic root of 79927149 is about 430.7561043497.

The spelling of 79927149 in words is "seventy-nine million, nine hundred twenty-seven thousand, one hundred forty-nine".