961604 has 24 divisors (see below), whose sum is σ = 1958208. Its totient is φ = 404640.

The previous prime is 961601. The next prime is 961613. The reversal of 961604 is 406169.

961604 = 17³ + 18³ + ... + 44³.

It is not an unprimeable number, because it can be changed into a prime (961601) 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, 1427 + ... + 1989.

It is an arithmetic number, because the mean of its divisors is an integer number (81592).

2⁹⁶¹⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

961604 is an abundant number, since it is smaller than the sum of its proper divisors (996604).

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

961604 is a wasteful number, since it uses less digits than its factorization.

961604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 961604 is about 980.6140933109. The cubic root of 961604 is about 98.7033941266.

The spelling of 961604 in words is "nine hundred sixty-one thousand, six hundred four".