90822637 has 2 divisors, whose sum is σ = 90822638. Its totient is φ = 90822636.

The previous prime is 90822623. The next prime is 90822647. The reversal of 90822637 is 73622809.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63584676 + 27237961 = 7974^2 + 5219^2 .

It is a cyclic number.

It is not a de Polignac number, because 90822637 - 2⁷ = 90822509 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 90822596 and 90822605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90822617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45411318 + 45411319.

It is an arithmetic number, because the mean of its divisors is an integer number (45411319).

Almost surely, 2^90822637 is an apocalyptic number.

It is an amenable number.

90822637 is a deficient number, since it is larger than the sum of its proper divisors (1).

90822637 is an equidigital number, since it uses as much as digits as its factorization.

90822637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 90822637 is about 9530.0911328276. The cubic root of 90822637 is about 449.5017316170.

The spelling of 90822637 in words is "ninety million, eight hundred twenty-two thousand, six hundred thirty-seven".