871107979 has 4 divisors (see below), whose sum is σ = 995551984. Its totient is φ = 746663976.

The previous prime is 871107971. The next prime is 871107989. The reversal of 871107979 is 979701178.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 979701178 = 2 ⋅489850589.

It is a cyclic number.

It is not a de Polignac number, because 871107979 - 2³ = 871107971 is a prime.

It is a super-2 number, since 2×871107979² = 1517658222154928882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (871107971) 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, 62221992 + ... + 62222005.

It is an arithmetic number, because the mean of its divisors is an integer number (248887996).

Almost surely, 2^871107979 is an apocalyptic number.

871107979 is a deficient number, since it is larger than the sum of its proper divisors (124444005).

871107979 is a wasteful number, since it uses less digits than its factorization.

871107979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124444004.

The product of its (nonzero) digits is 222264, while the sum is 49.

The square root of 871107979 is about 29514.5384344733. The cubic root of 871107979 is about 955.0453562516.

The spelling of 871107979 in words is "eight hundred seventy-one million, one hundred seven thousand, nine hundred seventy-nine".