993956 has 24 divisors (see below), whose sum is σ = 1886976. Its totient is φ = 456320.

The previous prime is 993943. The next prime is 993961. The reversal of 993956 is 659399.

It is a happy number.

993956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

993956 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3041 + ... + 3351.

It is an arithmetic number, because the mean of its divisors is an integer number (78624).

2⁹⁹³⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

993956 is a deficient number, since it is larger than the sum of its proper divisors (893020).

993956 is a wasteful number, since it uses less digits than its factorization.

993956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 377 counting only the distinct ones).

The product of its digits is 65610, while the sum is 41.

The square root of 993956 is about 996.9734199065. The cubic root of 993956 is about 99.7981260768.

The spelling of 993956 in words is "nine hundred ninety-three thousand, nine hundred fifty-six".