3934989 has 12 divisors (see below), whose sum is σ = 5703100. Its totient is φ = 2614464.

The previous prime is 3934979. The next prime is 3934991. The reversal of 3934989 is 9894393.

It can be written as a sum of positive squares in 2 ways, for example, as 2832489 + 1102500 = 1683^2 + 1050^2 .

It is not a de Polignac number, because 3934989 - 2⁹ = 3934477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3934979) 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, 3147 + ... + 4215.

Almost surely, 2^3934989 is an apocalyptic number.

It is an amenable number.

3934989 is a deficient number, since it is larger than the sum of its proper divisors (1768111).

3934989 is a wasteful number, since it uses less digits than its factorization.

3934989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484 (or 1481 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 3934989 is about 1983.6806698660. The cubic root of 3934989 is about 157.8754158639.

The spelling of 3934989 in words is "three million, nine hundred thirty-four thousand, nine hundred eighty-nine".