23308906 has 16 divisors (see below), whose sum is σ = 35622216. Its totient is φ = 11437056.

The previous prime is 23308903. The next prime is 23308907. The reversal of 23308906 is 60980332.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22515025 + 793881 = 4745^2 + 891^2 .

It is not an unprimeable number, because it can be changed into a prime (23308903) 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, 26140 + ... + 27016.

Almost surely, 2^23308906 is an apocalyptic number.

23308906 is a deficient number, since it is larger than the sum of its proper divisors (12313310).

23308906 is a wasteful number, since it uses less digits than its factorization.

23308906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 23308906 is about 4827.9297840793. The cubic root of 23308906 is about 285.6542106789.

It can be divided in two parts, 2330 and 8906, that added together give a square (11236 = 106²).

The spelling of 23308906 in words is "twenty-three million, three hundred eight thousand, nine hundred six".