964491 has 12 divisors (see below), whose sum is σ = 1414056. Its totient is φ = 584320.

The previous prime is 964463. The next prime is 964499. The reversal of 964491 is 194469.

It is not a de Polignac number, because 964491 - 2⁷ = 964363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (964499) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 966 + ... + 1691.

It is an arithmetic number, because the mean of its divisors is an integer number (117838).

2⁹⁶⁴⁴⁹¹ is an apocalyptic number.

964491 is a deficient number, since it is larger than the sum of its proper divisors (449565).

964491 is a wasteful number, since it uses less digits than its factorization.

964491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682 (or 2671 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 964491 is about 982.0850268689. The cubic root of 964491 is about 98.8020736942.

The spelling of 964491 in words is "nine hundred sixty-four thousand, four hundred ninety-one".