90539263 has 4 divisors (see below), whose sum is σ = 95865120. Its totient is φ = 85213408.

The previous prime is 90539261. The next prime is 90539269. The reversal of 90539263 is 36293509.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36293509 = 7 ⋅5184787.

It is a cyclic number.

It is not a de Polignac number, because 90539263 - 2¹ = 90539261 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 (90539261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2662903 + ... + 2662936.

It is an arithmetic number, because the mean of its divisors is an integer number (23966280).

Almost surely, 2^90539263 is an apocalyptic number.

90539263 is a deficient number, since it is larger than the sum of its proper divisors (5325857).

90539263 is a wasteful number, since it uses less digits than its factorization.

90539263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5325856.

The product of its (nonzero) digits is 43740, while the sum is 37.

The square root of 90539263 is about 9515.2121889110. The cubic root of 90539263 is about 449.0337506024.

The spelling of 90539263 in words is "ninety million, five hundred thirty-nine thousand, two hundred sixty-three".