32993993 has 2 divisors, whose sum is σ = 32993994. Its totient is φ = 32993992.

The previous prime is 32993981. The next prime is 32994007. The reversal of 32993993 is 39939923.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27962944 + 5031049 = 5288^2 + 2243^2 .

It is a cyclic number.

It is not a de Polignac number, because 32993993 - 2¹⁶ = 32928457 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32993903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16496996 + 16496997.

It is an arithmetic number, because the mean of its divisors is an integer number (16496997).

Almost surely, 2^32993993 is an apocalyptic number.

It is an amenable number.

32993993 is a deficient number, since it is larger than the sum of its proper divisors (1).

32993993 is an equidigital number, since it uses as much as digits as its factorization.

32993993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 354294, while the sum is 47.

The square root of 32993993 is about 5744.0397805029. The cubic root of 32993993 is about 320.7339695370.

The spelling of 32993993 in words is "thirty-two million, nine hundred ninety-three thousand, nine hundred ninety-three".