90802669 has 2 divisors, whose sum is σ = 90802670. Its totient is φ = 90802668.

The previous prime is 90802667. The next prime is 90802687. The reversal of 90802669 is 96620809.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76650025 + 14152644 = 8755^2 + 3762^2 .

It is a cyclic number.

It is not a de Polignac number, because 90802669 - 2¹ = 90802667 is a prime.

It is a super-2 number, since 2×90802669² = 16490249395047122, which contains 22 as substring.

Together with 90802667, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90802667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45401334 + 45401335.

It is an arithmetic number, because the mean of its divisors is an integer number (45401335).

Almost surely, 2^90802669 is an apocalyptic number.

It is an amenable number.

90802669 is a deficient number, since it is larger than the sum of its proper divisors (1).

90802669 is an equidigital number, since it uses as much as digits as its factorization.

90802669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 90802669 is about 9529.0434462227. The cubic root of 90802669 is about 449.4687871561.

The spelling of 90802669 in words is "ninety million, eight hundred two thousand, six hundred sixty-nine".