79896671 has 4 divisors (see below), whose sum is σ = 79963752. Its totient is φ = 79829592.

The previous prime is 79896643. The next prime is 79896701. The reversal of 79896671 is 17669897.

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 79896671 - 2¹⁴ = 79880287 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 (79898671) 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, 31721 + ... + 34146.

It is an arithmetic number, because the mean of its divisors is an integer number (19990938).

Almost surely, 2^79896671 is an apocalyptic number.

79896671 is a deficient number, since it is larger than the sum of its proper divisors (67081).

79896671 is a wasteful number, since it uses less digits than its factorization.

79896671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67080.

The product of its digits is 1143072, while the sum is 53.

The square root of 79896671 is about 8938.4937769179. The cubic root of 79896671 is about 430.7013450936.

The spelling of 79896671 in words is "seventy-nine million, eight hundred ninety-six thousand, six hundred seventy-one".