971691936 has 48 divisors (see below), whose sum is σ = 2592521568. Its totient is φ = 318585600.

The previous prime is 971691913. The next prime is 971691937. The reversal of 971691936 is 639196179.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (971691937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77110 + ... + 88821.

It is an arithmetic number, because the mean of its divisors is an integer number (54010866).

Almost surely, 2^971691936 is an apocalyptic number.

971691936 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

971691936 is an abundant number, since it is smaller than the sum of its proper divisors (1620829632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

971691936 is a wasteful number, since it uses less digits than its factorization.

971691936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166005 (or 165997 counting only the distinct ones).

The product of its digits is 551124, while the sum is 51.

The square root of 971691936 is about 31171.9735660096. The cubic root of 971691936 is about 990.4735128990.

The spelling of 971691936 in words is "nine hundred seventy-one million, six hundred ninety-one thousand, nine hundred thirty-six".