90632105 has 16 divisors (see below), whose sum is σ = 113190480. Its totient is φ = 69581568.

The previous prime is 90632093. The next prime is 90632111. The reversal of 90632105 is 50123609.

It can be written as a sum of positive squares in 8 ways, for example, as 3564544 + 87067561 = 1888^2 + 9331^2 .

It is a cyclic number.

It is not a de Polignac number, because 90632105 - 2¹⁰ = 90631081 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 23279 + ... + 26891.

It is an arithmetic number, because the mean of its divisors is an integer number (7074405).

Almost surely, 2^90632105 is an apocalyptic number.

It is an amenable number.

90632105 is a deficient number, since it is larger than the sum of its proper divisors (22558375).

90632105 is a wasteful number, since it uses less digits than its factorization.

90632105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 90632105 is about 9520.0895478982. The cubic root of 90632105 is about 449.1871829306.

The spelling of 90632105 in words is "ninety million, six hundred thirty-two thousand, one hundred five".