662223893 has 2 divisors, whose sum is σ = 662223894. Its totient is φ = 662223892.

The previous prime is 662223857. The next prime is 662223901. The reversal of 662223893 is 398322266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 595262404 + 66961489 = 24398^2 + 8183^2 .

It is a cyclic number.

It is not a de Polignac number, because 662223893 - 2¹² = 662219797 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 662223893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662223293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331111946 + 331111947.

It is an arithmetic number, because the mean of its divisors is an integer number (331111947).

Almost surely, 2^662223893 is an apocalyptic number.

It is an amenable number.

662223893 is a deficient number, since it is larger than the sum of its proper divisors (1).

662223893 is an equidigital number, since it uses as much as digits as its factorization.

662223893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 41.

The square root of 662223893 is about 25733.7112170009. The cubic root of 662223893 is about 871.6355778284.

The spelling of 662223893 in words is "six hundred sixty-two million, two hundred twenty-three thousand, eight hundred ninety-three".