223829887 has 4 divisors (see below), whose sum is σ = 224464320. Its totient is φ = 223195456.

The previous prime is 223829873. The next prime is 223829891. The reversal of 223829887 is 788928322.

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-223829887 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 223829887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223829387) 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, 316687 + ... + 317392.

It is an arithmetic number, because the mean of its divisors is an integer number (56116080).

Almost surely, 2^223829887 is an apocalyptic number.

223829887 is a deficient number, since it is larger than the sum of its proper divisors (634433).

223829887 is an equidigital number, since it uses as much as digits as its factorization.

223829887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634432.

The product of its digits is 774144, while the sum is 49.

The square root of 223829887 is about 14960.9453912512. The cubic root of 223829887 is about 607.1640163751.

The spelling of 223829887 in words is "two hundred twenty-three million, eight hundred twenty-nine thousand, eight hundred eighty-seven".