32890439 has 2 divisors, whose sum is σ = 32890440. Its totient is φ = 32890438.

The previous prime is 32890433. The next prime is 32890441. The reversal of 32890439 is 93409823.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32890439 is a prime.

It is a super-2 number, since 2×32890439² = 2163561955225442, which contains 22 as substring.

Together with 32890441, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32890433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16445219 + 16445220.

It is an arithmetic number, because the mean of its divisors is an integer number (16445220).

Almost surely, 2^32890439 is an apocalyptic number.

32890439 is a deficient number, since it is larger than the sum of its proper divisors (1).

32890439 is an equidigital number, since it uses as much as digits as its factorization.

32890439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 32890439 is about 5735.0186573367. The cubic root of 32890439 is about 320.3980690635.

The spelling of 32890439 in words is "thirty-two million, eight hundred ninety thousand, four hundred thirty-nine".