23281703 has 4 divisors (see below), whose sum is σ = 23299488. Its totient is φ = 23263920.

The previous prime is 23281673. The next prime is 23281711. The reversal of 23281703 is 30718232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23281703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23281723) 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, 6758 + ... + 9603.

It is an arithmetic number, because the mean of its divisors is an integer number (5824872).

Almost surely, 2^23281703 is an apocalyptic number.

23281703 is a deficient number, since it is larger than the sum of its proper divisors (17785).

23281703 is a wasteful number, since it uses less digits than its factorization.

23281703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17784.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 23281703 is about 4825.1117085514. Note that the first 3 decimals coincide. The cubic root of 23281703 is about 285.5430417777.

Adding to 23281703 its reverse (30718232), we get a palindrome (53999935).

Subtracting 23281703 from its reverse (30718232), we obtain a square (7436529 = 2727²).

The spelling of 23281703 in words is "twenty-three million, two hundred eighty-one thousand, seven hundred three".