90839193 has 8 divisors (see below), whose sum is σ = 121177056. Its totient is φ = 60530400.

The previous prime is 90839137. The next prime is 90839233. The reversal of 90839193 is 39193809.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90839193 - 2⁶ = 90839129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90839113) 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, 1558 + ... + 13568.

It is an arithmetic number, because the mean of its divisors is an integer number (15147132).

Almost surely, 2^90839193 is an apocalyptic number.

It is an amenable number.

90839193 is a deficient number, since it is larger than the sum of its proper divisors (30337863).

90839193 is a wasteful number, since it uses less digits than its factorization.

90839193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14535.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 90839193 is about 9530.9597103335. The cubic root of 90839193 is about 449.5290430846.

The spelling of 90839193 in words is "ninety million, eight hundred thirty-nine thousand, one hundred ninety-three".