90385927 has 2 divisors, whose sum is σ = 90385928. Its totient is φ = 90385926.

The previous prime is 90385913. The next prime is 90385937. The reversal of 90385927 is 72958309.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90385927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90385937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45192963 + 45192964.

It is an arithmetic number, because the mean of its divisors is an integer number (45192964).

Almost surely, 2^90385927 is an apocalyptic number.

90385927 is a deficient number, since it is larger than the sum of its proper divisors (1).

90385927 is an equidigital number, since it uses as much as digits as its factorization.

90385927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 90385927 is about 9507.1513609493. The cubic root of 90385927 is about 448.7801149861.

The spelling of 90385927 in words is "ninety million, three hundred eighty-five thousand, nine hundred twenty-seven".