975643679 has 2 divisors, whose sum is σ = 975643680. Its totient is φ = 975643678.

The previous prime is 975643657. The next prime is 975643709. The reversal of 975643679 is 976346579.

975643679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 975643679 - 2²⁴ = 958866463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (975643619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487821839 + 487821840.

It is an arithmetic number, because the mean of its divisors is an integer number (487821840).

Almost surely, 2^975643679 is an apocalyptic number.

975643679 is a deficient number, since it is larger than the sum of its proper divisors (1).

975643679 is an equidigital number, since it uses as much as digits as its factorization.

975643679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8573040, while the sum is 56.

The square root of 975643679 is about 31235.2954043979. The cubic root of 975643679 is about 991.8144051934.

It can be divided in two parts, 9756 and 43679, that added together give a palindrome (53435).

The spelling of 975643679 in words is "nine hundred seventy-five million, six hundred forty-three thousand, six hundred seventy-nine".