90523841 has 8 divisors (see below), whose sum is σ = 92473704. Its totient is φ = 88583040.

The previous prime is 90523831. The next prime is 90523871. The reversal of 90523841 is 14832509.

It can be written as a sum of positive squares in 4 ways, for example, as 2163841 + 88360000 = 1471^2 + 9400^2 .

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 90523841 - 2¹⁴ = 90507457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 90523798 and 90523807.

It is not an unprimeable number, because it can be changed into a prime (90523831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20285 + ... + 24341.

It is an arithmetic number, because the mean of its divisors is an integer number (11559213).

Almost surely, 2^90523841 is an apocalyptic number.

It is an amenable number.

90523841 is a deficient number, since it is larger than the sum of its proper divisors (1949863).

90523841 is a wasteful number, since it uses less digits than its factorization.

90523841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 90523841 is about 9514.4017678465. The cubic root of 90523841 is about 449.0082537756.

The spelling of 90523841 in words is "ninety million, five hundred twenty-three thousand, eight hundred forty-one".