223912693 has 2 divisors, whose sum is σ = 223912694. Its totient is φ = 223912692.

The previous prime is 223912687. The next prime is 223912753. The reversal of 223912693 is 396219322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137757169 + 86155524 = 11737^2 + 9282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223912693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223912993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111956346 + 111956347.

It is an arithmetic number, because the mean of its divisors is an integer number (111956347).

Almost surely, 2^223912693 is an apocalyptic number.

It is an amenable number.

223912693 is a deficient number, since it is larger than the sum of its proper divisors (1).

223912693 is an equidigital number, since it uses as much as digits as its factorization.

223912693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 37.

The square root of 223912693 is about 14963.7125406765. The cubic root of 223912693 is about 607.2388807070.

The spelling of 223912693 in words is "two hundred twenty-three million, nine hundred twelve thousand, six hundred ninety-three".