90041087 has 2 divisors, whose sum is σ = 90041088. Its totient is φ = 90041086.

The previous prime is 90041071. The next prime is 90041093. The reversal of 90041087 is 78014009.

It is a strong prime.

It is an emirp because it is prime and its reverse (78014009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90041087 - 2⁴ = 90041071 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90041587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45020543 + 45020544.

It is an arithmetic number, because the mean of its divisors is an integer number (45020544).

Almost surely, 2^90041087 is an apocalyptic number.

90041087 is a deficient number, since it is larger than the sum of its proper divisors (1).

90041087 is an equidigital number, since it uses as much as digits as its factorization.

90041087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 90041087 is about 9488.9982084517. The cubic root of 90041087 is about 448.2086596426.

The spelling of 90041087 in words is "ninety million, forty-one thousand, eighty-seven".