3949892 has 6 divisors (see below), whose sum is σ = 6912318. Its totient is φ = 1974944.

The previous prime is 3949889. The next prime is 3949903. The reversal of 3949892 is 2989493.

It can be written as a sum of positive squares in only one way, i.e., 3147076 + 802816 = 1774^2 + 896^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493733 + ... + 493740.

It is an arithmetic number, because the mean of its divisors is an integer number (1152053).

Almost surely, 2^3949892 is an apocalyptic number.

It is an amenable number.

3949892 is a deficient number, since it is larger than the sum of its proper divisors (2962426).

3949892 is a wasteful number, since it uses less digits than its factorization.

3949892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987477 (or 987475 counting only the distinct ones).

The product of its digits is 139968, while the sum is 44.

The square root of 3949892 is about 1987.4335209008. The cubic root of 3949892 is about 158.0744721830.

The spelling of 3949892 in words is "three million, nine hundred forty-nine thousand, eight hundred ninety-two".