993808 has 20 divisors (see below), whose sum is σ = 1941840. Its totient is φ = 492704.

The previous prime is 993793. The next prime is 993821. The reversal of 993808 is 808399.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2691 + ... + 3037.

It is an arithmetic number, because the mean of its divisors is an integer number (97092).

2⁹⁹³⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

993808 is a deficient number, since it is larger than the sum of its proper divisors (948032).

993808 is a wasteful number, since it uses less digits than its factorization.

993808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 993808 is about 996.8991924964. The cubic root of 993808 is about 99.7931725188.

The spelling of 993808 in words is "nine hundred ninety-three thousand, eight hundred eight".