90339193 has 24 divisors (see below), whose sum is σ = 111300480. Its totient is φ = 72959040.

The previous prime is 90339191. The next prime is 90339199. The reversal of 90339193 is 39193309.

It is not a de Polignac number, because 90339193 - 2¹ = 90339191 is a prime.

It is a super-2 number, since 2×90339193² = 16322339583782498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90339191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79453 + ... + 80581.

It is an arithmetic number, because the mean of its divisors is an integer number (4637520).

Almost surely, 2^90339193 is an apocalyptic number.

It is an amenable number.

90339193 is a deficient number, since it is larger than the sum of its proper divisors (20961287).

90339193 is a wasteful number, since it uses less digits than its factorization.

90339193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 19683, while the sum is 37.

The square root of 90339193 is about 9504.6932091467. The cubic root of 90339193 is about 448.7027544708.

The spelling of 90339193 in words is "ninety million, three hundred thirty-nine thousand, one hundred ninety-three".