79855671 has 8 divisors (see below), whose sum is σ = 121684864. Its totient is φ = 45631800.

The previous prime is 79855667. The next prime is 79855697. The reversal of 79855671 is 17655897.

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

It is not a de Polignac number, because 79855671 - 2² = 79855667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79855671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79855661) 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, 1901305 + ... + 1901346.

It is an arithmetic number, because the mean of its divisors is an integer number (15210608).

Almost surely, 2^79855671 is an apocalyptic number.

79855671 is a deficient number, since it is larger than the sum of its proper divisors (41829193).

79855671 is a wasteful number, since it uses less digits than its factorization.

79855671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3802661.

The product of its digits is 529200, while the sum is 48.

The square root of 79855671 is about 8936.2000313332. The cubic root of 79855671 is about 430.6276591841.

The spelling of 79855671 in words is "seventy-nine million, eight hundred fifty-five thousand, six hundred seventy-one".