23316385 has 4 divisors (see below), whose sum is σ = 27979668. Its totient is φ = 18653104.

The previous prime is 23316383. The next prime is 23316407. The reversal of 23316385 is 58361332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9979281 + 13337104 = 3159^2 + 3652^2 .

It is a cyclic number.

It is not a de Polignac number, because 23316385 - 2¹ = 23316383 is a prime.

It is a super-3 number, since 3×23316385³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23316383) 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 3 ways as a sum of consecutive naturals, for example, 2331634 + ... + 2331643.

It is an arithmetic number, because the mean of its divisors is an integer number (6994917).

Almost surely, 2^23316385 is an apocalyptic number.

It is an amenable number.

23316385 is a deficient number, since it is larger than the sum of its proper divisors (4663283).

23316385 is an equidigital number, since it uses as much as digits as its factorization.

23316385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663282.

The product of its digits is 12960, while the sum is 31.

The square root of 23316385 is about 4828.7042775469. The cubic root of 23316385 is about 285.6847595083.

The spelling of 23316385 in words is "twenty-three million, three hundred sixteen thousand, three hundred eighty-five".