223629997 has 2 divisors, whose sum is σ = 223629998. Its totient is φ = 223629996.

The previous prime is 223629983. The next prime is 223630003. The reversal of 223629997 is 799926322.

223629997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218182441 + 5447556 = 14771^2 + 2334^2 .

It is a cyclic number.

It is not a de Polignac number, because 223629997 - 2¹⁹ = 223105709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223629997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223629397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111814998 + 111814999.

It is an arithmetic number, because the mean of its divisors is an integer number (111814999).

Almost surely, 2^223629997 is an apocalyptic number.

It is an amenable number.

223629997 is a deficient number, since it is larger than the sum of its proper divisors (1).

223629997 is an equidigital number, since it uses as much as digits as its factorization.

223629997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 49.

The square root of 223629997 is about 14954.2635057699. The cubic root of 223629997 is about 606.9832210947.

The spelling of 223629997 in words is "two hundred twenty-three million, six hundred twenty-nine thousand, nine hundred ninety-seven".