90063605 has 4 divisors (see below), whose sum is σ = 108076332. Its totient is φ = 72050880.

The previous prime is 90063583. The next prime is 90063613. The reversal of 90063605 is 50636009.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44609041 + 45454564 = 6679^2 + 6742^2 .

It is not a de Polignac number, because 90063605 - 2⁶ = 90063541 is a prime.

It is a super-2 number, since 2×90063605² = 16222905891192050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9006356 + ... + 9006365.

It is an arithmetic number, because the mean of its divisors is an integer number (27019083).

Almost surely, 2^90063605 is an apocalyptic number.

It is an amenable number.

90063605 is a deficient number, since it is larger than the sum of its proper divisors (18012727).

90063605 is a wasteful number, since it uses less digits than its factorization.

90063605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18012726.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 90063605 is about 9490.1846662749. The cubic root of 90063605 is about 448.2460200732.

The spelling of 90063605 in words is "ninety million, sixty-three thousand, six hundred five".