79997001 has 8 divisors (see below), whose sum is σ = 121900224. Its totient is φ = 45712560.

The previous prime is 79996999. The next prime is 79997003. The reversal of 79997001 is 10079997.

It is an interprime number because it is at equal distance from previous prime (79996999) and next prime (79997003).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79997001 - 2¹ = 79996999 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (79997003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1904670 + ... + 1904711.

It is an arithmetic number, because the mean of its divisors is an integer number (15237528).

Almost surely, 2^79997001 is an apocalyptic number.

It is an amenable number.

79997001 is a deficient number, since it is larger than the sum of its proper divisors (41903223).

79997001 is a wasteful number, since it uses less digits than its factorization.

79997001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3809391.

The product of its (nonzero) digits is 35721, while the sum is 42.

The square root of 79997001 is about 8944.1042592313. The cubic root of 79997001 is about 430.8815536477.

The spelling of 79997001 in words is "seventy-nine million, nine hundred ninety-seven thousand, one".