971556086 has 16 divisors (see below), whose sum is σ = 1596270240. Its totient is φ = 441436800.

The previous prime is 971556077. The next prime is 971556107. The reversal of 971556086 is 680655179.

It is a self number, because there is not a number n which added to its sum of digits gives 971556086.

It is a congruent number.

It is an unprimeable number.

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, 491690 + ... + 493661.

It is an arithmetic number, because the mean of its divisors is an integer number (99766890).

Almost surely, 2^971556086 is an apocalyptic number.

971556086 is a deficient number, since it is larger than the sum of its proper divisors (624714154).

971556086 is a wasteful number, since it uses less digits than its factorization.

971556086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985399.

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 971556086 is about 31169.7944491137. The cubic root of 971556086 is about 990.4273521448.

The spelling of 971556086 in words is "nine hundred seventy-one million, five hundred fifty-six thousand, eighty-six".