32812993 has 2 divisors, whose sum is σ = 32812994. Its totient is φ = 32812992.

The previous prime is 32812991. The next prime is 32813017. The reversal of 32812993 is 39921823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22496049 + 10316944 = 4743^2 + 3212^2 .

It is a cyclic number.

It is not a de Polignac number, because 32812993 - 2¹ = 32812991 is a prime.

Together with 32812991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (32812991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16406496 + 16406497.

It is an arithmetic number, because the mean of its divisors is an integer number (16406497).

Almost surely, 2^32812993 is an apocalyptic number.

It is an amenable number.

32812993 is a deficient number, since it is larger than the sum of its proper divisors (1).

32812993 is an equidigital number, since it uses as much as digits as its factorization.

32812993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 32812993 is about 5728.2626511011. The cubic root of 32812993 is about 320.1463946053.

The spelling of 32812993 in words is "thirty-two million, eight hundred twelve thousand, nine hundred ninety-three".