90103782 has 16 divisors (see below), whose sum is σ = 181958400. Its totient is φ = 29742792.

The previous prime is 90103777. The next prime is 90103789. The reversal of 90103782 is 28730109.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90103789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72282 + ... + 73517.

It is an arithmetic number, because the mean of its divisors is an integer number (11372400).

Almost surely, 2^90103782 is an apocalyptic number.

90103782 is an abundant number, since it is smaller than the sum of its proper divisors (91854618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90103782 is a wasteful number, since it uses less digits than its factorization.

90103782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145907.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 90103782 is about 9492.3011962327. The cubic root of 90103782 is about 448.3126637268.

The spelling of 90103782 in words is "ninety million, one hundred three thousand, seven hundred eighty-two".