32743989 has 18 divisors (see below), whose sum is σ = 50246690. Its totient is φ = 20543616.

The previous prime is 32743969. The next prime is 32744017. The reversal of 32743989 is 98934723.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5963364 + 26780625 = 2442^2 + 5175^2 .

It is not a de Polignac number, because 32743989 - 2⁷ = 32743861 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 (32743969) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3694 + ... + 8895.

Almost surely, 2^32743989 is an apocalyptic number.

It is an amenable number.

32743989 is a deficient number, since it is larger than the sum of its proper divisors (17502701).

32743989 is a wasteful number, since it uses less digits than its factorization.

32743989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12629 (or 12609 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 32743989 is about 5722.2363635208. The cubic root of 32743989 is about 319.9218200940.

The spelling of 32743989 in words is "thirty-two million, seven hundred forty-three thousand, nine hundred eighty-nine".