90609841 has 16 divisors (see below), whose sum is σ = 109987200. Its totient is φ = 72914688.

The previous prime is 90609829. The next prime is 90609851. The reversal of 90609841 is 14890609.

It is not a de Polignac number, because 90609841 - 2⁵ = 90609809 is a prime.

It is a super-3 number, since 3×90609841³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90609841.

It is not an unprimeable number, because it can be changed into a prime (90609851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12015 + ... + 18043.

It is an arithmetic number, because the mean of its divisors is an integer number (6874200).

Almost surely, 2^90609841 is an apocalyptic number.

It is an amenable number.

90609841 is a deficient number, since it is larger than the sum of its proper divisors (19377359).

90609841 is a wasteful number, since it uses less digits than its factorization.

90609841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6168.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 90609841 is about 9518.9201593458. The cubic root of 90609841 is about 449.1503986055.

The spelling of 90609841 in words is "ninety million, six hundred nine thousand, eight hundred forty-one".