23210993 has 8 divisors (see below), whose sum is σ = 25061736. Its totient is φ = 21369600.

The previous prime is 23210987. The next prime is 23211029. The reversal of 23210993 is 39901232.

It can be written as a sum of positive squares in 4 ways, for example, as 667489 + 22543504 = 817^2 + 4748^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23210993 - 2¹⁶ = 23145457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23210953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3353 + ... + 7593.

It is an arithmetic number, because the mean of its divisors is an integer number (3132717).

Almost surely, 2^23210993 is an apocalyptic number.

It is an amenable number.

23210993 is a deficient number, since it is larger than the sum of its proper divisors (1850743).

23210993 is a wasteful number, since it uses less digits than its factorization.

23210993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 23210993 is about 4817.7788450696. The cubic root of 23210993 is about 285.2536697070.

The spelling of 23210993 in words is "twenty-three million, two hundred ten thousand, nine hundred ninety-three".