3890889 has 16 divisors (see below), whose sum is σ = 5875200. Its totient is φ = 2544048.

The previous prime is 3890879. The next prime is 3890927. The reversal of 3890889 is 9880983.

It is not a de Polignac number, because 3890889 - 2⁸ = 3890633 is a prime.

It is a Curzon number.

3890889 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3890819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72 + ... + 2790.

It is an arithmetic number, because the mean of its divisors is an integer number (367200).

Almost surely, 2^3890889 is an apocalyptic number.

It is an amenable number.

3890889 is a deficient number, since it is larger than the sum of its proper divisors (1984311).

3890889 is a wasteful number, since it uses less digits than its factorization.

3890889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781 (or 2775 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 3890889 is about 1972.5336499031. The cubic root of 3890889 is about 157.2834211389.

The spelling of 3890889 in words is "three million, eight hundred ninety thousand, eight hundred eighty-nine".