861602968 has 8 divisors (see below), whose sum is σ = 1615505580. Its totient is φ = 430801480.

The previous prime is 861602953. The next prime is 861602971. The reversal of 861602968 is 869206168.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 53850178 + ... + 53850193.

Almost surely, 2^861602968 is an apocalyptic number.

It is an amenable number.

861602968 is a deficient number, since it is larger than the sum of its proper divisors (753902612).

861602968 is a wasteful number, since it uses less digits than its factorization.

861602968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107700377 (or 107700373 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 861602968 is about 29353.0742512603. The cubic root of 861602968 is about 951.5590165072.

The spelling of 861602968 in words is "eight hundred sixty-one million, six hundred two thousand, nine hundred sixty-eight".