3975489 has 12 divisors (see below), whose sum is σ = 6562816. Its totient is φ = 2271672.

The previous prime is 3975487. The next prime is 3975493. The reversal of 3975489 is 9845793.

It is not a de Polignac number, because 3975489 - 2¹ = 3975487 is a prime.

It is a Duffinian number.

It is a Curzon number.

3975489 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3975487) 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, 31489 + ... + 31614.

Almost surely, 2^3975489 is an apocalyptic number.

It is an amenable number.

3975489 is a deficient number, since it is larger than the sum of its proper divisors (2587327).

3975489 is a wasteful number, since it uses less digits than its factorization.

3975489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63116 (or 63113 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 3975489 is about 1993.8628337978. The cubic root of 3975489 is about 158.4152007527.

It can be divided in two parts, 397 and 5489, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 3975489 in words is "three million, nine hundred seventy-five thousand, four hundred eighty-nine".