90324823 has 2 divisors, whose sum is σ = 90324824. Its totient is φ = 90324822.

The previous prime is 90324797. The next prime is 90324847. The reversal of 90324823 is 32842309.

It is a strong prime.

It is an emirp because it is prime and its reverse (32842309) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90324823 is a prime.

It is equal to p_5234818 and since 90324823 and 5234818 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90324853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45162411 + 45162412.

It is an arithmetic number, because the mean of its divisors is an integer number (45162412).

Almost surely, 2^90324823 is an apocalyptic number.

90324823 is a deficient number, since it is larger than the sum of its proper divisors (1).

90324823 is an equidigital number, since it uses as much as digits as its factorization.

90324823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 90324823 is about 9503.9372367456. The cubic root of 90324823 is about 448.6789619164.

The spelling of 90324823 in words is "ninety million, three hundred twenty-four thousand, eight hundred twenty-three".