971690648 has 16 divisors (see below), whose sum is σ = 1822451280. Its totient is φ = 485703648.

The previous prime is 971690639. The next prime is 971690701. The reversal of 971690648 is 846096179.

It is a super-3 number, since 3×971690648³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 971690596 and 971690605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14990 + ... + 46562.

It is an arithmetic number, because the mean of its divisors is an integer number (113903205).

Almost surely, 2^971690648 is an apocalyptic number.

It is an amenable number.

971690648 is a deficient number, since it is larger than the sum of its proper divisors (850760632).

971690648 is a wasteful number, since it uses less digits than its factorization.

971690648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35426 (or 35422 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 971690648 is about 31171.9529064189. The cubic root of 971690648 is about 990.4730752670.

The spelling of 971690648 in words is "nine hundred seventy-one million, six hundred ninety thousand, six hundred forty-eight".