32428939 has 2 divisors, whose sum is σ = 32428940. Its totient is φ = 32428938.

The previous prime is 32428927. The next prime is 32428967. The reversal of 32428939 is 93982423.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 32428939 - 2⁹ = 32428427 is a prime.

It is not a weakly prime, because it can be changed into another prime (32428999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16214469 + 16214470.

It is an arithmetic number, because the mean of its divisors is an integer number (16214470).

Almost surely, 2^32428939 is an apocalyptic number.

32428939 is a deficient number, since it is larger than the sum of its proper divisors (1).

32428939 is an equidigital number, since it uses as much as digits as its factorization.

32428939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 40.

The square root of 32428939 is about 5694.6412529676. The cubic root of 32428939 is about 318.8924569434.

The spelling of 32428939 in words is "thirty-two million, four hundred twenty-eight thousand, nine hundred thirty-nine".