223908953 has 4 divisors (see below), whose sum is σ = 227704080. Its totient is φ = 220113828.

The previous prime is 223908943. The next prime is 223908967. The reversal of 223908953 is 359809322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223908953 - 2¹⁴ = 223892569 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 223908953.

It is not an unprimeable number, because it can be changed into a prime (223908943) 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 3 ways as a sum of consecutive naturals, for example, 1897475 + ... + 1897592.

It is an arithmetic number, because the mean of its divisors is an integer number (56926020).

Almost surely, 2^223908953 is an apocalyptic number.

It is an amenable number.

223908953 is a deficient number, since it is larger than the sum of its proper divisors (3795127).

223908953 is an equidigital number, since it uses as much as digits as its factorization.

223908953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3795126.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 223908953 is about 14963.5875711676. The cubic root of 223908953 is about 607.2354997969.

The spelling of 223908953 in words is "two hundred twenty-three million, nine hundred eight thousand, nine hundred fifty-three".