3949023 has 12 divisors (see below), whose sum is σ = 5702280. Its totient is φ = 2429856.

The previous prime is 3949013. The next prime is 3949027. The reversal of 3949023 is 3209493.

It is not a de Polignac number, because 3949023 - 2⁴ = 3949007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3388 + ... + 4401.

It is an arithmetic number, because the mean of its divisors is an integer number (475190).

Almost surely, 2^3949023 is an apocalyptic number.

3949023 is a deficient number, since it is larger than the sum of its proper divisors (1753257).

3949023 is a wasteful number, since it uses less digits than its factorization.

3949023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7818 (or 7805 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 3949023 is about 1987.2148852100. The cubic root of 3949023 is about 158.0628788879.

The spelling of 3949023 in words is "three million, nine hundred forty-nine thousand, twenty-three".