971881946 has 16 divisors (see below), whose sum is σ = 1666500480. Its totient is φ = 416416560.

The previous prime is 971881927. The next prime is 971881957. The reversal of 971881946 is 649188179.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81515 + ... + 92673.

It is an arithmetic number, because the mean of its divisors is an integer number (104156280).

Almost surely, 2^971881946 is an apocalyptic number.

971881946 is a deficient number, since it is larger than the sum of its proper divisors (694618534).

971881946 is a wasteful number, since it uses less digits than its factorization.

971881946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17389.

The product of its digits is 870912, while the sum is 53.

The square root of 971881946 is about 31175.0211868412. The cubic root of 971881946 is about 990.5380695756.

The spelling of 971881946 in words is "nine hundred seventy-one million, eight hundred eighty-one thousand, nine hundred forty-six".