23393906 has 8 divisors (see below), whose sum is σ = 35168364. Its totient is φ = 11671120.

The previous prime is 23393897. The next prime is 23393941. The reversal of 23393906 is 60939332.

It can be written as a sum of positive squares in 2 ways, for example, as 19228225 + 4165681 = 4385^2 + 2041^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11765 + ... + 13608.

Almost surely, 2^23393906 is an apocalyptic number.

23393906 is a deficient number, since it is larger than the sum of its proper divisors (11774458).

23393906 is a wasteful number, since it uses less digits than its factorization.

23393906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25836.

The product of its (nonzero) digits is 26244, while the sum is 35.

The square root of 23393906 is about 4836.7247182365. The cubic root of 23393906 is about 286.0010187911.

The spelling of 23393906 in words is "twenty-three million, three hundred ninety-three thousand, nine hundred six".