90828929 has 2 divisors, whose sum is σ = 90828930. Its totient is φ = 90828928.

The previous prime is 90828923. The next prime is 90828931. The reversal of 90828929 is 92982809.

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., 50481025 + 40347904 = 7105^2 + 6352^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90828929 is a prime.

Together with 90828931, 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 (90828923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45414464 + 45414465.

It is an arithmetic number, because the mean of its divisors is an integer number (45414465).

Almost surely, 2^90828929 is an apocalyptic number.

It is an amenable number.

90828929 is a deficient number, since it is larger than the sum of its proper divisors (1).

90828929 is an equidigital number, since it uses as much as digits as its factorization.

90828929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 90828929 is about 9530.4212393787. The cubic root of 90828929 is about 449.5121115534.

The spelling of 90828929 in words is "ninety million, eight hundred twenty-eight thousand, nine hundred twenty-nine".