9993156 has 12 divisors (see below), whose sum is σ = 23317392. Its totient is φ = 3331048.

The previous prime is 9993149. The next prime is 9993167. The reversal of 9993156 is 6513999.

9993156 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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, 416370 + ... + 416393.

It is an arithmetic number, because the mean of its divisors is an integer number (1943116).

Almost surely, 2^9993156 is an apocalyptic number.

It is an amenable number.

9993156 is an abundant number, since it is smaller than the sum of its proper divisors (13324236).

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

9993156 is a wasteful number, since it uses less digits than its factorization.

9993156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832770 (or 832768 counting only the distinct ones).

The product of its digits is 65610, while the sum is 42.

The square root of 9993156 is about 3161.1953435370. The cubic root of 9993156 is about 215.3943079495.

The spelling of 9993156 in words is "nine million, nine hundred ninety-three thousand, one hundred fifty-six".