90324497 has 2 divisors, whose sum is σ = 90324498. Its totient is φ = 90324496.

The previous prime is 90324491. The next prime is 90324583. The reversal of 90324497 is 79442309.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47761921 + 42562576 = 6911^2 + 6524^2 .

It is a cyclic number.

It is not a de Polignac number, because 90324497 - 2¹⁸ = 90062353 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 90324497.

It is not a weakly prime, because it can be changed into another prime (90324491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45162248 + 45162249.

It is an arithmetic number, because the mean of its divisors is an integer number (45162249).

Almost surely, 2^90324497 is an apocalyptic number.

It is an amenable number.

90324497 is a deficient number, since it is larger than the sum of its proper divisors (1).

90324497 is an equidigital number, since it uses as much as digits as its factorization.

90324497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 90324497 is about 9503.9200859435. The cubic root of 90324497 is about 448.6784221256.

The spelling of 90324497 in words is "ninety million, three hundred twenty-four thousand, four hundred ninety-seven".