90367859 has 2 divisors, whose sum is σ = 90367860. Its totient is φ = 90367858.

The previous prime is 90367817. The next prime is 90367909. The reversal of 90367859 is 95876309.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90367859 - 2⁸ = 90367603 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90367259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45183929 + 45183930.

It is an arithmetic number, because the mean of its divisors is an integer number (45183930).

Almost surely, 2^90367859 is an apocalyptic number.

90367859 is a deficient number, since it is larger than the sum of its proper divisors (1).

90367859 is an equidigital number, since it uses as much as digits as its factorization.

90367859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 90367859 is about 9506.2010813994. The cubic root of 90367859 is about 448.7502095213.

The spelling of 90367859 in words is "ninety million, three hundred sixty-seven thousand, eight hundred fifty-nine".