90814223 has 2 divisors, whose sum is σ = 90814224. Its totient is φ = 90814222.

The previous prime is 90814219. The next prime is 90814231. The reversal of 90814223 is 32241809.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90814223 - 2² = 90814219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90814123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45407111 + 45407112.

It is an arithmetic number, because the mean of its divisors is an integer number (45407112).

Almost surely, 2^90814223 is an apocalyptic number.

90814223 is a deficient number, since it is larger than the sum of its proper divisors (1).

90814223 is an equidigital number, since it uses as much as digits as its factorization.

90814223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 90814223 is about 9529.6496787657. The cubic root of 90814223 is about 449.4878502599.

The spelling of 90814223 in words is "ninety million, eight hundred fourteen thousand, two hundred twenty-three".