23329993 has 2 divisors, whose sum is σ = 23329994. Its totient is φ = 23329992.

The previous prime is 23329991. The next prime is 23330009. The reversal of 23329993 is 39992332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22771984 + 558009 = 4772^2 + 747^2 .

It is a cyclic number.

It is not a de Polignac number, because 23329993 - 2¹ = 23329991 is a prime.

Together with 23329991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23329991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11664996 + 11664997.

It is an arithmetic number, because the mean of its divisors is an integer number (11664997).

Almost surely, 2^23329993 is an apocalyptic number.

It is an amenable number.

23329993 is a deficient number, since it is larger than the sum of its proper divisors (1).

23329993 is an equidigital number, since it uses as much as digits as its factorization.

23329993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78732, while the sum is 40.

The square root of 23329993 is about 4830.1131456727. The cubic root of 23329993 is about 285.7403261861.

The spelling of 23329993 in words is "twenty-three million, three hundred twenty-nine thousand, nine hundred ninety-three".