971879 has 4 divisors (see below), whose sum is σ = 998184. Its totient is φ = 945576.

The previous prime is 971863. The next prime is 971899. The reversal of 971879 is 978179.

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 971879 - 2⁴ = 971863 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 (971899) 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, 13097 + ... + 13170.

It is an arithmetic number, because the mean of its divisors is an integer number (249546).

2⁹⁷¹⁸⁷⁹ is an apocalyptic number.

971879 is a deficient number, since it is larger than the sum of its proper divisors (26305).

971879 is a wasteful number, since it uses less digits than its factorization.

971879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26304.

The product of its digits is 31752, while the sum is 41.

The square root of 971879 is about 985.8392363869. The cubic root of 971879 is about 99.0537068724.

The spelling of 971879 in words is "nine hundred seventy-one thousand, eight hundred seventy-nine".