975691 has 2 divisors, whose sum is σ = 975692. Its totient is φ = 975690.

The previous prime is 975671. The next prime is 975701. The reversal of 975691 is 196579.

It is a strong prime.

It is an emirp because it is prime and its reverse (196579) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 975691 - 2¹⁷ = 844619 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 975691.

It is not a weakly prime, because it can be changed into another prime (975661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487845 + 487846.

It is an arithmetic number, because the mean of its divisors is an integer number (487846).

2⁹⁷⁵⁶⁹¹ is an apocalyptic number.

975691 is a deficient number, since it is larger than the sum of its proper divisors (1).

975691 is an equidigital number, since it uses as much as digits as its factorization.

975691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 37.

The square root of 975691 is about 987.7707223845. The cubic root of 975691 is about 99.1830440040.

The spelling of 975691 in words is "nine hundred seventy-five thousand, six hundred ninety-one".