961220732 has 12 divisors (see below), whose sum is σ = 1781085600. Its totient is φ = 452339136.

The previous prime is 961220707. The next prime is 961220779. The reversal of 961220732 is 237022169.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7067732 + ... + 7067867.

It is an arithmetic number, because the mean of its divisors is an integer number (148423800).

Almost surely, 2^961220732 is an apocalyptic number.

It is an amenable number.

961220732 is a deficient number, since it is larger than the sum of its proper divisors (819864868).

961220732 is a wasteful number, since it uses less digits than its factorization.

961220732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14135620 (or 14135618 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 961220732 is about 31003.5599891367. The cubic root of 961220732 is about 986.9027892901.

The spelling of 961220732 in words is "nine hundred sixty-one million, two hundred twenty thousand, seven hundred thirty-two".