3890489 has 4 divisors (see below), whose sum is σ = 3948624. Its totient is φ = 3832356.

The previous prime is 3890431. The next prime is 3890503. The reversal of 3890489 is 9840983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3890489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3890429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28967 + ... + 29100.

It is an arithmetic number, because the mean of its divisors is an integer number (987156).

Almost surely, 2^3890489 is an apocalyptic number.

It is an amenable number.

3890489 is a deficient number, since it is larger than the sum of its proper divisors (58135).

3890489 is an equidigital number, since it uses as much as digits as its factorization.

3890489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58134.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 3890489 is about 1972.4322548569. The cubic root of 3890489 is about 157.2780311518.

The spelling of 3890489 in words is "three million, eight hundred ninety thousand, four hundred eighty-nine".