223720841 has 4 divisors (see below), whose sum is σ = 225892992. Its totient is φ = 221548692.

The previous prime is 223720807. The next prime is 223720853. The reversal of 223720841 is 148027322.

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 223720841 - 2²² = 219526537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223720891) 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, 1085921 + ... + 1086126.

It is an arithmetic number, because the mean of its divisors is an integer number (56473248).

Almost surely, 2^223720841 is an apocalyptic number.

It is an amenable number.

223720841 is a deficient number, since it is larger than the sum of its proper divisors (2172151).

223720841 is a wasteful number, since it uses less digits than its factorization.

223720841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172150.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 223720841 is about 14957.3005920186. The cubic root of 223720841 is about 607.0654004678.

The spelling of 223720841 in words is "two hundred twenty-three million, seven hundred twenty thousand, eight hundred forty-one".