223429693 has 2 divisors, whose sum is σ = 223429694. Its totient is φ = 223429692.

The previous prime is 223429667. The next prime is 223429697. The reversal of 223429693 is 396924322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217798564 + 5631129 = 14758^2 + 2373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223429693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223429697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111714846 + 111714847.

It is an arithmetic number, because the mean of its divisors is an integer number (111714847).

Almost surely, 2^223429693 is an apocalyptic number.

It is an amenable number.

223429693 is a deficient number, since it is larger than the sum of its proper divisors (1).

223429693 is an equidigital number, since it uses as much as digits as its factorization.

223429693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 40.

The square root of 223429693 is about 14947.5647849407. The cubic root of 223429693 is about 606.8019432598.

The spelling of 223429693 in words is "two hundred twenty-three million, four hundred twenty-nine thousand, six hundred ninety-three".