223999997 has 8 divisors (see below), whose sum is σ = 244285440. Its totient is φ = 204150960.

The previous prime is 223999903. The next prime is 224000047. The reversal of 223999997 is 799999322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-223999997 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 (223999297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108029 + ... + 110082.

It is an arithmetic number, because the mean of its divisors is an integer number (30535680).

Almost surely, 2^223999997 is an apocalyptic number.

It is an amenable number.

223999997 is a deficient number, since it is larger than the sum of its proper divisors (20285443).

223999997 is a wasteful number, since it uses less digits than its factorization.

223999997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218203.

The product of its digits is 4960116, while the sum is 59.

The square root of 223999997 is about 14966.6294468728. The cubic root of 223999997 is about 607.3177916639.

The spelling of 223999997 in words is "two hundred twenty-three million, nine hundred ninety-nine thousand, nine hundred ninety-seven".