3913994 has 8 divisors (see below), whose sum is σ = 6709728. Its totient is φ = 1677420.

The previous prime is 3913993. The next prime is 3914003. The reversal of 3913994 is 4993193.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3913991) 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, 139772 + ... + 139799.

It is an arithmetic number, because the mean of its divisors is an integer number (838716).

Almost surely, 2^3913994 is an apocalyptic number.

3913994 is a deficient number, since it is larger than the sum of its proper divisors (2795734).

3913994 is a wasteful number, since it uses less digits than its factorization.

3913994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279580.

The product of its digits is 26244, while the sum is 38.

The square root of 3913994 is about 1978.3816618641. The cubic root of 3913994 is about 157.5941353775.

The spelling of 3913994 in words is "three million, nine hundred thirteen thousand, nine hundred ninety-four".