3949994 has 8 divisors (see below), whose sum is σ = 6022308. Its totient is φ = 1942560.

The previous prime is 3949969. The next prime is 3950029. The reversal of 3949994 is 4999493.

It is a happy number.

3949994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3751969 + 198025 = 1937^2 + 445^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16067 + ... + 16310.

Almost surely, 2^3949994 is an apocalyptic number.

3949994 is a deficient number, since it is larger than the sum of its proper divisors (2072314).

3949994 is a wasteful number, since it uses less digits than its factorization.

3949994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32440.

The product of its digits is 314928, while the sum is 47.

The square root of 3949994 is about 1987.4591819708. The cubic root of 3949994 is about 158.0758328496.

It can be divided in two parts, 39499 and 94, that added together give a palindrome (39593).

The spelling of 3949994 in words is "three million, nine hundred forty-nine thousand, nine hundred ninety-four".