971645464 has 16 divisors (see below), whose sum is σ = 1884657600. Its totient is φ = 469070112.

The previous prime is 971645443. The next prime is 971645531. The reversal of 971645464 is 464546179.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2093832 + ... + 2094295.

It is an arithmetic number, because the mean of its divisors is an integer number (117791100).

Almost surely, 2^971645464 is an apocalyptic number.

It is an amenable number.

971645464 is a deficient number, since it is larger than the sum of its proper divisors (913012136).

971645464 is a wasteful number, since it uses less digits than its factorization.

971645464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4188162 (or 4188158 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The square root of 971645464 is about 31171.2281439150. The cubic root of 971645464 is about 990.4577225656.

The spelling of 971645464 in words is "nine hundred seventy-one million, six hundred forty-five thousand, four hundred sixty-four".