971824879 has 8 divisors (see below), whose sum is σ = 981901440. Its totient is φ = 961760856.

The previous prime is 971824877. The next prime is 971824949. The reversal of 971824879 is 978428179.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 971824879 - 2¹ = 971824877 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 (971824871) 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, 288684 + ... + 292030.

It is an arithmetic number, because the mean of its divisors is an integer number (122737680).

Almost surely, 2^971824879 is an apocalyptic number.

971824879 is a deficient number, since it is larger than the sum of its proper divisors (10076561).

971824879 is a wasteful number, since it uses less digits than its factorization.

971824879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6269.

The product of its digits is 2032128, while the sum is 55.

The square root of 971824879 is about 31174.1059053824. The cubic root of 971824879 is about 990.5186817125.

The spelling of 971824879 in words is "nine hundred seventy-one million, eight hundred twenty-four thousand, eight hundred seventy-nine".