22961903 has 4 divisors (see below), whose sum is σ = 23252640. Its totient is φ = 22671168.

The previous prime is 22961891. The next prime is 22961921. The reversal of 22961903 is 30916922.

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

It is a cyclic number.

It is not a de Polignac number, because 22961903 - 2¹⁰ = 22960879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22961903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22961933) 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, 145250 + ... + 145407.

It is an arithmetic number, because the mean of its divisors is an integer number (5813160).

Almost surely, 2^22961903 is an apocalyptic number.

22961903 is a deficient number, since it is larger than the sum of its proper divisors (290737).

22961903 is an equidigital number, since it uses as much as digits as its factorization.

22961903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290736.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 22961903 is about 4791.8579903833. The cubic root of 22961903 is about 284.2295926594.

The spelling of 22961903 in words is "twenty-two million, nine hundred sixty-one thousand, nine hundred three".