965986644 has 24 divisors (see below), whose sum is σ = 2575964608. Its totient is φ = 275996160.

The previous prime is 965986613. The next prime is 965986649. The reversal of 965986644 is 446689569.

It is a happy number.

965986644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (965986649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5749837 + ... + 5750004.

Almost surely, 2^965986644 is an apocalyptic number.

It is an amenable number.

965986644 is an abundant number, since it is smaller than the sum of its proper divisors (1609977964).

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

965986644 is a wasteful number, since it uses less digits than its factorization.

965986644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11499855 (or 11499853 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 57.

The square root of 965986644 is about 31080.3256739694. The cubic root of 965986644 is about 988.5311837663.

The spelling of 965986644 in words is "nine hundred sixty-five million, nine hundred eighty-six thousand, six hundred forty-four".