964641000 has 64 divisors (see below), whose sum is σ = 3009689280. Its totient is φ = 257236800.

The previous prime is 964640993. The next prime is 964641017. The reversal of 964641000 is 146469.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157774 + ... + 163773.

It is an arithmetic number, because the mean of its divisors is an integer number (47026395).

Almost surely, 2^964641000 is an apocalyptic number.

It is an amenable number.

964641000 is an abundant number, since it is smaller than the sum of its proper divisors (2045048280).

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

964641000 is a wasteful number, since it uses less digits than its factorization.

964641000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321571 (or 321557 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 964641000 is about 31058.6702870551. The cubic root of 964641000 is about 988.0719540880.

Adding to 964641000 its reverse (146469), we get a palindrome (964787469).

The spelling of 964641000 in words is "nine hundred sixty-four million, six hundred forty-one thousand".