90504305 has 8 divisors (see below), whose sum is σ = 110093352. Its totient is φ = 71411328.

The previous prime is 90504269. The next prime is 90504317. The reversal of 90504305 is 50340509.

It can be written as a sum of positive squares in 4 ways, for example, as 25411681 + 65092624 = 5041^2 + 8068^2 .

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 90504305 - 2¹⁸ = 90242161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123614 + ... + 124343.

It is an arithmetic number, because the mean of its divisors is an integer number (13761669).

Almost surely, 2^90504305 is an apocalyptic number.

It is an amenable number.

90504305 is a deficient number, since it is larger than the sum of its proper divisors (19589047).

90504305 is a wasteful number, since it uses less digits than its factorization.

90504305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248035.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 90504305 is about 9513.3750583061. The cubic root of 90504305 is about 448.9759512122.

It can be divided in two parts, 90504 and 305, that added together give a palindrome (90809).

The spelling of 90504305 in words is "ninety million, five hundred four thousand, three hundred five".