223957399 has 4 divisors (see below), whose sum is σ = 224007120. Its totient is φ = 223907680.

The previous prime is 223957379. The next prime is 223957429. The reversal of 223957399 is 993759322.

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 223957399 - 2⁵ = 223957367 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 (223957309) 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, 17347 + ... + 27364.

It is an arithmetic number, because the mean of its divisors is an integer number (56001780).

Almost surely, 2^223957399 is an apocalyptic number.

223957399 is a deficient number, since it is larger than the sum of its proper divisors (49721).

223957399 is an equidigital number, since it uses as much as digits as its factorization.

223957399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49720.

The product of its digits is 918540, while the sum is 49.

The square root of 223957399 is about 14965.2062799014. The cubic root of 223957399 is about 607.2792914202.

The spelling of 223957399 in words is "two hundred twenty-three million, nine hundred fifty-seven thousand, three hundred ninety-nine".