90036293 has 8 divisors (see below), whose sum is σ = 90809208. Its totient is φ = 89266624.

The previous prime is 90036251. The next prime is 90036299. The reversal of 90036293 is 39263009.

It can be written as a sum of positive squares in 4 ways, for example, as 19509889 + 70526404 = 4417^2 + 8398^2 .

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 90036293 - 2¹⁰ = 90035269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90036299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112571 + ... + 113367.

It is an arithmetic number, because the mean of its divisors is an integer number (11351151).

Almost surely, 2^90036293 is an apocalyptic number.

It is an amenable number.

90036293 is a deficient number, since it is larger than the sum of its proper divisors (772915).

90036293 is a wasteful number, since it uses less digits than its factorization.

90036293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 90036293 is about 9488.7455967583. The cubic root of 90036293 is about 448.2007049391.

The spelling of 90036293 in words is "ninety million, thirty-six thousand, two hundred ninety-three".