3890023 has 4 divisors (see below), whose sum is σ = 3907240. Its totient is φ = 3872808.

The previous prime is 3890021. The next prime is 3890027. The reversal of 3890023 is 3200983.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3890023 - 2¹ = 3890021 is a prime.

It is a Duffinian number.

3890023 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3890023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890021) 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, 8265 + ... + 8722.

It is an arithmetic number, because the mean of its divisors is an integer number (976810).

Almost surely, 2^3890023 is an apocalyptic number.

3890023 is a deficient number, since it is larger than the sum of its proper divisors (17217).

3890023 is a wasteful number, since it uses less digits than its factorization.

3890023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17216.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 3890023 is about 1972.3141230544. The cubic root of 3890023 is about 157.2717513509.

The spelling of 3890023 in words is "three million, eight hundred ninety thousand, twenty-three".