79988701 has 4 divisors (see below), whose sum is σ = 86141692. Its totient is φ = 73835712.

The previous prime is 79988693. The next prime is 79988717. The reversal of 79988701 is 10788997.

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 25745476 + 54243225 = 5074^2 + 7365^2 .

It is a cyclic number.

It is not a de Polignac number, because 79988701 - 2³ = 79988693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79988771) 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, 3076476 + ... + 3076501.

It is an arithmetic number, because the mean of its divisors is an integer number (21535423).

Almost surely, 2^79988701 is an apocalyptic number.

It is an amenable number.

79988701 is a deficient number, since it is larger than the sum of its proper divisors (6152991).

79988701 is a wasteful number, since it uses less digits than its factorization.

79988701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6152990.

The product of its (nonzero) digits is 254016, while the sum is 49.

The square root of 79988701 is about 8943.6402543931. The cubic root of 79988701 is about 430.8666512533.

The spelling of 79988701 in words is "seventy-nine million, nine hundred eighty-eight thousand, seven hundred one".