964491838 has 24 divisors (see below), whose sum is σ = 1550551392. Its totient is φ = 449831424.

The previous prime is 964491817. The next prime is 964491877. The reversal of 964491838 is 838194469.

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 11 ways as a sum of consecutive naturals, for example, 57931 + ... + 72697.

It is an arithmetic number, because the mean of its divisors is an integer number (64606308).

Almost surely, 2^964491838 is an apocalyptic number.

964491838 is a deficient number, since it is larger than the sum of its proper divisors (586059554).

964491838 is a wasteful number, since it uses less digits than its factorization.

964491838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14916 (or 14899 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 52.

The square root of 964491838 is about 31056.2689001754. The cubic root of 964491838 is about 988.0210230902.

The spelling of 964491838 in words is "nine hundred sixty-four million, four hundred ninety-one thousand, eight hundred thirty-eight".