32428999 has 2 divisors, whose sum is σ = 32429000. Its totient is φ = 32428998.

The previous prime is 32428987. The next prime is 32429021. The reversal of 32428999 is 99982423.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 32428999 - 2⁵ = 32428967 is a prime.

It is a super-2 number, since 2×32428999² = 2103279952284002, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a zygodrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32428939) 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, 16214499 + 16214500.

It is an arithmetic number, because the mean of its divisors is an integer number (16214500).

Almost surely, 2^32428999 is an apocalyptic number.

32428999 is a deficient number, since it is larger than the sum of its proper divisors (1).

32428999 is an equidigital number, since it uses as much as digits as its factorization.

32428999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 46.

The square root of 32428999 is about 5694.6465210757. The cubic root of 32428999 is about 318.8926536148.

The spelling of 32428999 in words is "thirty-two million, four hundred twenty-eight thousand, nine hundred ninety-nine".