99604 has 12 divisors (see below), whose sum is σ = 179284. Its totient is φ = 48384.

The previous prime is 99581. The next prime is 99607. The reversal of 99604 is 40699.

It can be written as a sum of positive squares in 2 ways, for example, as 63504 + 36100 = 252^2 + 190^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189 + ... + 484.

2⁹⁹⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

99604 is a deficient number, since it is larger than the sum of its proper divisors (79680).

99604 is a wasteful number, since it uses less digits than its factorization.

99604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714 (or 712 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 99604 is about 315.6010139401. The cubic root of 99604 is about 46.3545383101.

It can be divided in two parts, 99 and 604, that added together give a triangular number (703 = T₃₇).

The spelling of 99604 in words is "ninety-nine thousand, six hundred four".