79002149 has 4 divisors (see below), whose sum is σ = 79185036. Its totient is φ = 78819264.

The previous prime is 79002127. The next prime is 79002151. The reversal of 79002149 is 94120097.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10824100 + 68178049 = 3290^2 + 8257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79002149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79002199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90794 + ... + 91659.

It is an arithmetic number, because the mean of its divisors is an integer number (19796259).

Almost surely, 2^79002149 is an apocalyptic number.

It is an amenable number.

79002149 is a deficient number, since it is larger than the sum of its proper divisors (182887).

79002149 is a wasteful number, since it uses less digits than its factorization.

79002149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182886.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 79002149 is about 8888.3153071884. The cubic root of 79002149 is about 429.0879333914.

The spelling of 79002149 in words is "seventy-nine million, two thousand, one hundred forty-nine".