3939494 has 16 divisors (see below), whose sum is σ = 6398448. Its totient is φ = 1808352.

The previous prime is 3939473. The next prime is 3939497. The reversal of 3939494 is 4949393.

3939494 = T₇₇₂ + T₇₇₃ + ... + T₇₈₄.

It is a happy number.

3939494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3939494² = 31039225952072, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3939497) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6929 + ... + 7475.

It is an arithmetic number, because the mean of its divisors is an integer number (399903).

Almost surely, 2^3939494 is an apocalyptic number.

3939494 is a deficient number, since it is larger than the sum of its proper divisors (2458954).

3939494 is a wasteful number, since it uses less digits than its factorization.

3939494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839.

The product of its digits is 104976, while the sum is 41.

The square root of 3939494 is about 1984.8158604767. The cubic root of 3939494 is about 157.9356411490.

The spelling of 3939494 in words is "three million, nine hundred thirty-nine thousand, four hundred ninety-four".