32429993 has 2 divisors, whose sum is σ = 32429994. Its totient is φ = 32429992.

The previous prime is 32429987. The next prime is 32430001. The reversal of 32429993 is 39992423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30824704 + 1605289 = 5552^2 + 1267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32429993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 32429993.

It is not a weakly prime, because it can be changed into another prime (32429933) 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, 16214996 + 16214997.

It is an arithmetic number, because the mean of its divisors is an integer number (16214997).

Almost surely, 2^32429993 is an apocalyptic number.

It is an amenable number.

32429993 is a deficient number, since it is larger than the sum of its proper divisors (1).

32429993 is an equidigital number, since it uses as much as digits as its factorization.

32429993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 41.

The square root of 32429993 is about 5694.7337953587. The cubic root of 32429993 is about 318.8959117692.

The spelling of 32429993 in words is "thirty-two million, four hundred twenty-nine thousand, nine hundred ninety-three".