90942829 has 2 divisors, whose sum is σ = 90942830. Its totient is φ = 90942828.

The previous prime is 90942799. The next prime is 90942847. The reversal of 90942829 is 92824909.

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., 65237929 + 25704900 = 8077^2 + 5070^2 .

It is an emirp because it is prime and its reverse (92824909) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90942829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90942029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45471414 + 45471415.

It is an arithmetic number, because the mean of its divisors is an integer number (45471415).

Almost surely, 2^90942829 is an apocalyptic number.

It is an amenable number.

90942829 is a deficient number, since it is larger than the sum of its proper divisors (1).

90942829 is an equidigital number, since it uses as much as digits as its factorization.

90942829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 90942829 is about 9536.3949687500. The cubic root of 90942829 is about 449.6999299923.

The spelling of 90942829 in words is "ninety million, nine hundred forty-two thousand, eight hundred twenty-nine".