90922369 has 2 divisors, whose sum is σ = 90922370. Its totient is φ = 90922368.

The previous prime is 90922367. The next prime is 90922373. The reversal of 90922369 is 96322909.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78588225 + 12334144 = 8865^2 + 3512^2 .

It is an emirp because it is prime and its reverse (96322909) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90922369 - 2¹ = 90922367 is a prime.

It is a super-2 number, since 2×90922369² = 16533754369144322, which contains 22 as substring.

Together with 90922367, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90922367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45461184 + 45461185.

It is an arithmetic number, because the mean of its divisors is an integer number (45461185).

Almost surely, 2^90922369 is an apocalyptic number.

It is an amenable number.

90922369 is a deficient number, since it is larger than the sum of its proper divisors (1).

90922369 is an equidigital number, since it uses as much as digits as its factorization.

90922369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 90922369 is about 9535.3221759938. The cubic root of 90922369 is about 449.6662034898. Note that the first 3 decimals are identical.

The spelling of 90922369 in words is "ninety million, nine hundred twenty-two thousand, three hundred sixty-nine".