90854091 has 12 divisors (see below), whose sum is σ = 132116400. Its totient is φ = 60162000.

The previous prime is 90854089. The next prime is 90854107. The reversal of 90854091 is 19045809.

It is not a de Polignac number, because 90854091 - 2¹ = 90854089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90854011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32535 + ... + 35216.

It is an arithmetic number, because the mean of its divisors is an integer number (11009700).

Almost surely, 2^90854091 is an apocalyptic number.

90854091 is a deficient number, since it is larger than the sum of its proper divisors (41262309).

90854091 is a wasteful number, since it uses less digits than its factorization.

90854091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67906 (or 67903 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 90854091 is about 9531.7412365213. The cubic root of 90854091 is about 449.5536166098.

The spelling of 90854091 in words is "ninety million, eight hundred fifty-four thousand, ninety-one".