3993930 has 48 divisors (see below), whose sum is σ = 10483200. Its totient is φ = 1054944.

The previous prime is 3993911. The next prime is 3993943. The reversal of 3993930 is 393993.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17799 + ... + 18021.

It is an arithmetic number, because the mean of its divisors is an integer number (218400).

Almost surely, 2^3993930 is an apocalyptic number.

3993930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3993930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5241600).

3993930 is an abundant number, since it is smaller than the sum of its proper divisors (6489270).

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

3993930 is a wasteful number, since it uses less digits than its factorization.

3993930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 19683, while the sum is 36.

The square root of 3993930 is about 1998.4819238612. The cubic root of 3993930 is about 158.6597685096.

The spelling of 3993930 in words is "three million, nine hundred ninety-three thousand, nine hundred thirty".