90824801 has 2 divisors, whose sum is σ = 90824802. Its totient is φ = 90824800.

The previous prime is 90824759. The next prime is 90824809. The reversal of 90824801 is 10842809.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89794576 + 1030225 = 9476^2 + 1015^2 .

It is a cyclic number.

It is not a de Polignac number, because 90824801 - 2²² = 86630497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90824809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45412400 + 45412401.

It is an arithmetic number, because the mean of its divisors is an integer number (45412401).

Almost surely, 2^90824801 is an apocalyptic number.

It is an amenable number.

90824801 is a deficient number, since it is larger than the sum of its proper divisors (1).

90824801 is an equidigital number, since it uses as much as digits as its factorization.

90824801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 90824801 is about 9530.2046672671. The cubic root of 90824801 is about 449.5053016302.

The spelling of 90824801 in words is "ninety million, eight hundred twenty-four thousand, eight hundred one".