975666385 has 16 divisors (see below), whose sum is σ = 1183754880. Its totient is φ = 771937920.

The previous prime is 975666383. The next prime is 975666407. The reversal of 975666385 is 583666579.

It is not a de Polignac number, because 975666385 - 2¹ = 975666383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (975666383) 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 15 ways as a sum of consecutive naturals, for example, 202636 + ... + 207394.

It is an arithmetic number, because the mean of its divisors is an integer number (73984680).

Almost surely, 2^975666385 is an apocalyptic number.

It is an amenable number.

975666385 is a deficient number, since it is larger than the sum of its proper divisors (208088495).

975666385 is a wasteful number, since it uses less digits than its factorization.

975666385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5208.

The product of its digits is 8164800, while the sum is 55.

The square root of 975666385 is about 31235.6588693115. The cubic root of 975666385 is about 991.8220992466.

The spelling of 975666385 in words is "nine hundred seventy-five million, six hundred sixty-six thousand, three hundred eighty-five".