961658368 has 40 divisors (see below), whose sum is σ = 2096127000. Its totient is φ = 437114880.

The previous prime is 961658333. The next prime is 961658371. The reversal of 961658368 is 863856169.

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 in 3 ways as a sum of consecutive naturals, for example, 79743 + ... + 91006.

It is an arithmetic number, because the mean of its divisors is an integer number (52403175).

Almost surely, 2^961658368 is an apocalyptic number.

It is an amenable number.

961658368 is an abundant number, since it is smaller than the sum of its proper divisors (1134468632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

961658368 is a wasteful number, since it uses less digits than its factorization.

961658368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170778 (or 170762 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 52.

The square root of 961658368 is about 31010.6170206270. The cubic root of 961658368 is about 987.0525428426.

The spelling of 961658368 in words is "nine hundred sixty-one million, six hundred fifty-eight thousand, three hundred sixty-eight".