956816197 has 4 divisors (see below), whose sum is σ = 957456000. Its totient is φ = 956176396.

The previous prime is 956816191. The next prime is 956816239. The reversal of 956816197 is 791618659.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 956816197 - 2¹¹ = 956814149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (956816191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317653 + ... + 320650.

It is an arithmetic number, because the mean of its divisors is an integer number (239364000).

Almost surely, 2^956816197 is an apocalyptic number.

It is an amenable number.

956816197 is a deficient number, since it is larger than the sum of its proper divisors (639803).

956816197 is a wasteful number, since it uses less digits than its factorization.

956816197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639802.

The product of its digits is 816480, while the sum is 52.

The square root of 956816197 is about 30932.4457002675. The cubic root of 956816197 is about 985.3930756154.

The spelling of 956816197 in words is "nine hundred fifty-six million, eight hundred sixteen thousand, one hundred ninety-seven".