90392 has 8 divisors (see below), whose sum is σ = 169500. Its totient is φ = 45192.
The previous prime is 90379. The next prime is 90397. The reversal of 90392 is 29309.
It is a tau number, because it is divible by the number of its divisors (8).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (90397) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5642 + ... + 5657.
290392 is an apocalyptic number.
It is an amenable number.
90392 is a deficient number, since it is larger than the sum of its proper divisors (79108).
90392 is a wasteful number, since it uses less digits than its factorization.
90392 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11305 (or 11301 counting only the distinct ones).
The product of its (nonzero) digits is 486, while the sum is 23.
The square root of 90392 is about 300.6526234710. The cubic root of 90392 is about 44.8790165889.
The spelling of 90392 in words is "ninety thousand, three hundred ninety-two".
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