23903906 has 8 divisors (see below), whose sum is σ = 38614044. Its totient is φ = 11032560.

The previous prime is 23903903. The next prime is 23903927. The reversal of 23903906 is 60930932.

It can be written as a sum of positive squares in 2 ways, for example, as 22174681 + 1729225 = 4709^2 + 1315^2 .

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

It is not an unprimeable number, because it can be changed into a prime (23903903) 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, 459665 + ... + 459716.

Almost surely, 2^23903906 is an apocalyptic number.

23903906 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

23903906 is a deficient number, since it is larger than the sum of its proper divisors (14710138).

23903906 is a wasteful number, since it uses less digits than its factorization.

23903906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919396.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 23903906 is about 4889.1620959015. The cubic root of 23903906 is about 288.0644226381.

The spelling of 23903906 in words is "twenty-three million, nine hundred three thousand, nine hundred six".