79320071 has 4 divisors (see below), whose sum is σ = 79339944. Its totient is φ = 79300200.

The previous prime is 79320053. The next prime is 79320127. The reversal of 79320071 is 17002397.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 79320071 - 2¹⁴ = 79303687 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 (79322071) 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, 1640 + ... + 12701.

It is an arithmetic number, because the mean of its divisors is an integer number (19834986).

Almost surely, 2^79320071 is an apocalyptic number.

79320071 is a deficient number, since it is larger than the sum of its proper divisors (19873).

79320071 is a wasteful number, since it uses less digits than its factorization.

79320071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19872.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 79320071 is about 8906.1816172813. The cubic root of 79320071 is about 429.6627443880.

The spelling of 79320071 in words is "seventy-nine million, three hundred twenty thousand, seventy-one".