971948877 has 8 divisors (see below), whose sum is σ = 1297396416. Its totient is φ = 647233632.

The previous prime is 971948863. The next prime is 971948899. The reversal of 971948877 is 778849179.

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

It is not a de Polignac number, because 971948877 - 2¹⁰ = 971947853 is a prime.

It is a super-2 number, since 2×971948877² = 1889369239003122258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 971948877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971948977) 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, 179968 + ... + 185289.

It is an arithmetic number, because the mean of its divisors is an integer number (162174552).

Almost surely, 2^971948877 is an apocalyptic number.

It is an amenable number.

971948877 is a deficient number, since it is larger than the sum of its proper divisors (325447539).

971948877 is a wasteful number, since it uses less digits than its factorization.

971948877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366147.

The product of its digits is 7112448, while the sum is 60.

The square root of 971948877 is about 31176.0946399641. The cubic root of 971948877 is about 990.5608076533.

The spelling of 971948877 in words is "nine hundred seventy-one million, nine hundred forty-eight thousand, eight hundred seventy-seven".