90833091 has 16 divisors (see below), whose sum is σ = 134985600. Its totient is φ = 53993088.

The previous prime is 90833089. The next prime is 90833101. The reversal of 90833091 is 19033809.

It is not a de Polignac number, because 90833091 - 2¹ = 90833089 is a prime.

It is a super-2 number, since 2×90833091² = 16501300841228562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90833021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45901 + ... + 47838.

It is an arithmetic number, because the mean of its divisors is an integer number (8436600).

Almost surely, 2^90833091 is an apocalyptic number.

90833091 is a deficient number, since it is larger than the sum of its proper divisors (44152509).

90833091 is a wasteful number, since it uses less digits than its factorization.

90833091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93778.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 90833091 is about 9530.6395902898. The cubic root of 90833091 is about 449.5189773573.

The spelling of 90833091 in words is "ninety million, eight hundred thirty-three thousand, ninety-one".