90541439 has 8 divisors (see below), whose sum is σ = 95956560. Its totient is φ = 85136256.

The previous prime is 90541433. The next prime is 90541457. The reversal of 90541439 is 93414509.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90541439 - 2²⁰ = 89492863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90541399 and 90541408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90541433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25157 + ... + 28529.

It is an arithmetic number, because the mean of its divisors is an integer number (11994570).

Almost surely, 2^90541439 is an apocalyptic number.

90541439 is a deficient number, since it is larger than the sum of its proper divisors (5415121).

90541439 is a wasteful number, since it uses less digits than its factorization.

90541439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4969.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 90541439 is about 9515.3265314439. The cubic root of 90541439 is about 449.0373478985.

The spelling of 90541439 in words is "ninety million, five hundred forty-one thousand, four hundred thirty-nine".