861696963 has 12 divisors (see below), whose sum is σ = 1245154768. Its totient is φ = 574242480.

The previous prime is 861696931. The next prime is 861696971. The reversal of 861696963 is 369696168.

It is not a de Polignac number, because 861696963 - 2⁵ = 861696931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (861696263) 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 11 ways as a sum of consecutive naturals, for example, 8058 + ... + 42288.

Almost surely, 2^861696963 is an apocalyptic number.

861696963 is a deficient number, since it is larger than the sum of its proper divisors (383457805).

861696963 is a wasteful number, since it uses less digits than its factorization.

861696963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37034 (or 37031 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 861696963 is about 29354.6753175708. The cubic root of 861696963 is about 951.5936181125.

The spelling of 861696963 in words is "eight hundred sixty-one million, six hundred ninety-six thousand, nine hundred sixty-three".