90538423 has 8 divisors (see below), whose sum is σ = 91727856. Its totient is φ = 89356800.

The previous prime is 90538421. The next prime is 90538451. The reversal of 90538423 is 32483509.

It is a happy number.

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 90538423 - 2¹ = 90538421 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 (90538421) 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, 23493 + ... + 27073.

It is an arithmetic number, because the mean of its divisors is an integer number (11465982).

Almost surely, 2^90538423 is an apocalyptic number.

90538423 is a deficient number, since it is larger than the sum of its proper divisors (1189433).

90538423 is a wasteful number, since it uses less digits than its factorization.

90538423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3905.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 90538423 is about 9515.1680489627. The cubic root of 90538423 is about 449.0323619249.

The spelling of 90538423 in words is "ninety million, five hundred thirty-eight thousand, four hundred twenty-three".