23308849 has 4 divisors (see below), whose sum is σ = 23515236. Its totient is φ = 23102464.

The previous prime is 23308847. The next prime is 23308889. The reversal of 23308849 is 94880332.

23308849 = 397² + 398² + ... + 509².

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 651249 + 22657600 = 807^2 + 4760^2 .

It is a cyclic number.

It is not a de Polignac number, because 23308849 - 2¹ = 23308847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23308841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103024 + ... + 103249.

It is an arithmetic number, because the mean of its divisors is an integer number (5878809).

Almost surely, 2^23308849 is an apocalyptic number.

It is an amenable number.

23308849 is a deficient number, since it is larger than the sum of its proper divisors (206387).

23308849 is a wasteful number, since it uses less digits than its factorization.

23308849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206386.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 23308849 is about 4827.9238809244. The cubic root of 23308849 is about 285.6539778308.

The spelling of 23308849 in words is "twenty-three million, three hundred eight thousand, eight hundred forty-nine".