90281383 has 2 divisors, whose sum is σ = 90281384. Its totient is φ = 90281382.

The previous prime is 90281377. The next prime is 90281423. The reversal of 90281383 is 38318209.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90281383 - 2⁵ = 90281351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90281353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45140691 + 45140692.

It is an arithmetic number, because the mean of its divisors is an integer number (45140692).

Almost surely, 2^90281383 is an apocalyptic number.

90281383 is a deficient number, since it is larger than the sum of its proper divisors (1).

90281383 is an equidigital number, since it uses as much as digits as its factorization.

90281383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 90281383 is about 9501.6515932758. The cubic root of 90281383 is about 448.6070225209.

The spelling of 90281383 in words is "ninety million, two hundred eighty-one thousand, three hundred eighty-three".