964608660 has 36 divisors (see below), whose sum is σ = 2925980148. Its totient is φ = 257228928.

The previous prime is 964608647. The next prime is 964608691. The reversal of 964608660 is 66806469.

It can be written as a sum of positive squares in 2 ways, for example, as 462938256 + 501670404 = 21516^2 + 22398^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 2679289 + ... + 2679648.

Almost surely, 2^964608660 is an apocalyptic number.

964608660 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

964608660 is an abundant number, since it is smaller than the sum of its proper divisors (1961371488).

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

964608660 is a wasteful number, since it uses less digits than its factorization.

964608660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5358952 (or 5358947 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 964608660 is about 31058.1496551227. The cubic root of 964608660 is about 988.0609121204.

The spelling of 964608660 in words is "nine hundred sixty-four million, six hundred eight thousand, six hundred sixty".