975666407 has 2 divisors, whose sum is σ = 975666408. Its totient is φ = 975666406.

The previous prime is 975666383. The next prime is 975666409. The reversal of 975666407 is 704666579.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 975666407 - 2⁸ = 975666151 is a prime.

Together with 975666409, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (975666409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487833203 + 487833204.

It is an arithmetic number, because the mean of its divisors is an integer number (487833204).

Almost surely, 2^975666407 is an apocalyptic number.

975666407 is a deficient number, since it is larger than the sum of its proper divisors (1).

975666407 is an equidigital number, since it uses as much as digits as its factorization.

975666407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The square root of 975666407 is about 31235.6592214731. The cubic root of 975666407 is about 991.8221067014.

The spelling of 975666407 in words is "nine hundred seventy-five million, six hundred sixty-six thousand, four hundred seven".