79150871 has 4 divisors (see below), whose sum is σ = 80265744. Its totient is φ = 78036000.

The previous prime is 79150847. The next prime is 79150913. The reversal of 79150871 is 17805197.

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 79150871 - 2¹⁸ = 78888727 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 (79150171) 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, 557330 + ... + 557471.

It is an arithmetic number, because the mean of its divisors is an integer number (20066436).

Almost surely, 2^79150871 is an apocalyptic number.

79150871 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

79150871 is a deficient number, since it is larger than the sum of its proper divisors (1114873).

79150871 is a wasteful number, since it uses less digits than its factorization.

79150871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114872.

The product of its (nonzero) digits is 17640, while the sum is 38.

The square root of 79150871 is about 8896.6775259082. The cubic root of 79150871 is about 429.3570181119.

The spelling of 79150871 in words is "seventy-nine million, one hundred fifty thousand, eight hundred seventy-one".