87322223 has 2 divisors, whose sum is σ = 87322224. Its totient is φ = 87322222.

The previous prime is 87322211. The next prime is 87322229. The reversal of 87322223 is 32222378.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87322223 - 2²⁰ = 86273647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87322229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43661111 + 43661112.

It is an arithmetic number, because the mean of its divisors is an integer number (43661112).

Almost surely, 2^87322223 is an apocalyptic number.

87322223 is a deficient number, since it is larger than the sum of its proper divisors (1).

87322223 is an equidigital number, since it uses as much as digits as its factorization.

87322223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 29.

The square root of 87322223 is about 9344.6360549783. The cubic root of 87322223 is about 443.6511324274.

The spelling of 87322223 in words is "eighty-seven million, three hundred twenty-two thousand, two hundred twenty-three".