3843890 has 16 divisors (see below), whose sum is σ = 7283520. Its totient is φ = 1456560.

The previous prime is 3843883. The next prime is 3843913. The reversal of 3843890 is 983483.

It is a self number, because there is not a number n which added to its sum of digits gives 3843890.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9926 + ... + 10305.

It is an arithmetic number, because the mean of its divisors is an integer number (455220).

Almost surely, 2^3843890 is an apocalyptic number.

3843890 is a deficient number, since it is larger than the sum of its proper divisors (3439630).

3843890 is a wasteful number, since it uses less digits than its factorization.

3843890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20257.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 3843890 is about 1960.5840966406. The cubic root of 3843890 is about 156.6475657011.

The spelling of 3843890 in words is "three million, eight hundred forty-three thousand, eight hundred ninety".