90453785 has 12 divisors (see below), whose sum is σ = 110436708. Its totient is φ = 71122848.

The previous prime is 90453773. The next prime is 90453791. The reversal of 90453785 is 58735409.

It can be written as a sum of positive squares in 2 ways, for example, as 36929929 + 53523856 = 6077^2 + 7316^2 .

It is not a de Polignac number, because 90453785 - 2⁸ = 90453529 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 14807 + ... + 20003.

It is an arithmetic number, because the mean of its divisors is an integer number (9203059).

Almost surely, 2^90453785 is an apocalyptic number.

It is an amenable number.

90453785 is a deficient number, since it is larger than the sum of its proper divisors (19982923).

90453785 is an equidigital number, since it uses as much as digits as its factorization.

90453785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5320 (or 5261 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 90453785 is about 9510.7194785673. The cubic root of 90453785 is about 448.8923953827.

The spelling of 90453785 in words is "ninety million, four hundred fifty-three thousand, seven hundred eighty-five".