90236535 has 16 divisors (see below), whose sum is σ = 145301856. Its totient is φ = 47818368.

The previous prime is 90236519. The next prime is 90236537. The reversal of 90236535 is 53563209.

It is not a de Polignac number, because 90236535 - 2⁴ = 90236519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90236496 and 90236505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90236537) 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, 16804 + ... + 21513.

It is an arithmetic number, because the mean of its divisors is an integer number (9081366).

Almost surely, 2^90236535 is an apocalyptic number.

90236535 is a deficient number, since it is larger than the sum of its proper divisors (55065321).

90236535 is a wasteful number, since it uses less digits than its factorization.

90236535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38482.

The product of its (nonzero) digits is 24300, while the sum is 33.

The square root of 90236535 is about 9499.2912893542. The cubic root of 90236535 is about 448.5327271736.

The spelling of 90236535 in words is "ninety million, two hundred thirty-six thousand, five hundred thirty-five".