975989671 has 2 divisors, whose sum is σ = 975989672. Its totient is φ = 975989670.

The previous prime is 975989611. The next prime is 975989681. The reversal of 975989671 is 176989579.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 975989671 - 2¹⁵ = 975956903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (975989611) 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 as a sum of consecutive naturals, namely, 487994835 + 487994836.

It is an arithmetic number, because the mean of its divisors is an integer number (487994836).

Almost surely, 2^975989671 is an apocalyptic number.

975989671 is a deficient number, since it is larger than the sum of its proper divisors (1).

975989671 is an equidigital number, since it uses as much as digits as its factorization.

975989671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8573040, while the sum is 61.

The square root of 975989671 is about 31240.8333915726. The cubic root of 975989671 is about 991.9316335423.

The spelling of 975989671 in words is "nine hundred seventy-five million, nine hundred eighty-nine thousand, six hundred seventy-one".