975997 has 8 divisors (see below), whose sum is σ = 1078560. Its totient is φ = 875760.

The previous prime is 975991. The next prime is 976009. The reversal of 975997 is 799579.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 975997 - 2⁷ = 975869 is a prime.

It is a Duffinian number.

975997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (975991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379 + ... + 1447.

It is an arithmetic number, because the mean of its divisors is an integer number (134820).

2⁹⁷⁵⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

975997 is a deficient number, since it is larger than the sum of its proper divisors (102563).

975997 is a wasteful number, since it uses less digits than its factorization.

975997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163.

The product of its digits is 178605, while the sum is 46.

The square root of 975997 is about 987.9256044865. The cubic root of 975997 is about 99.1934116440.

The spelling of 975997 in words is "nine hundred seventy-five thousand, nine hundred ninety-seven".