23208361 has 16 divisors (see below), whose sum is σ = 26265600. Its totient is φ = 20321280.

The previous prime is 23208301. The next prime is 23208391. The reversal of 23208361 is 16380232.

It is a 4-Lehmer number, since φ(23208361) divides (23208361-1)⁴.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23208361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23208301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51465 + ... + 51913.

It is an arithmetic number, because the mean of its divisors is an integer number (1641600).

Almost surely, 2^23208361 is an apocalyptic number.

It is an amenable number.

23208361 is a deficient number, since it is larger than the sum of its proper divisors (3057239).

23208361 is a wasteful number, since it uses less digits than its factorization.

23208361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 23208361 is about 4817.5056824045. The cubic root of 23208361 is about 285.2428872294.

Adding to 23208361 its reverse (16380232), we get a palindrome (39588593).

The spelling of 23208361 in words is "twenty-three million, two hundred eight thousand, three hundred sixty-one".