3924891 has 12 divisors (see below), whose sum is σ = 5714280. Its totient is φ = 2595840.

The previous prime is 3924883. The next prime is 3924901. The reversal of 3924891 is 1984293.

It is not a de Polignac number, because 3924891 - 2³ = 3924883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3924871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 486 + ... + 2843.

It is an arithmetic number, because the mean of its divisors is an integer number (476190).

Almost surely, 2^3924891 is an apocalyptic number.

3924891 is a deficient number, since it is larger than the sum of its proper divisors (1789389).

3924891 is a wasteful number, since it uses less digits than its factorization.

3924891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466 (or 3463 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 3924891 is about 1981.1337663066. The cubic root of 3924891 is about 157.7402531310.

The spelling of 3924891 in words is "three million, nine hundred twenty-four thousand, eight hundred ninety-one".