3994593 has 8 divisors (see below), whose sum is σ = 5342400. Its totient is φ = 2654928.

The previous prime is 3994591. The next prime is 3994597. The reversal of 3994593 is 3954993.

It is a happy number.

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

It is not a de Polignac number, because 3994593 - 2¹ = 3994591 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3994591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 778 + ... + 2931.

It is an arithmetic number, because the mean of its divisors is an integer number (667800).

Almost surely, 2^3994593 is an apocalyptic number.

It is an amenable number.

3994593 is a deficient number, since it is larger than the sum of its proper divisors (1347807).

3994593 is a wasteful number, since it uses less digits than its factorization.

3994593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071.

The product of its digits is 131220, while the sum is 42.

The square root of 3994593 is about 1998.6477928840. The cubic root of 3994593 is about 158.6685472986.

Subtracting from 3994593 its sum of digits (42), we obtain a triangular number (3994551 = T₂₈₂₆).

The spelling of 3994593 in words is "three million, nine hundred ninety-four thousand, five hundred ninety-three".