90473 has 2 divisors, whose sum is σ = 90474.
Its totient is φ = 90472.
The previous prime is 90469. The next prime is 90481. The reversal of 90473 is 37409.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 85849 + 4624 = 293^2 + 68^2
It is an emirp because it is prime and its reverse (37409) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 90473 - 22 = 90469 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (90403) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45236 + 45237.
It is an arithmetic number, because the mean of its divisors is an integer number (45237).
290473 is an apocalyptic number.
It is an amenable number.
90473 is a deficient number, since it is larger than the sum of its proper divisors (1).
90473 is an equidigital number, since it uses as much as digits as its factorization.
90473 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 756, while the sum is 23.
The square root of 90473 is about 300.7873002638.
The cubic root of 90473 is about 44.8924179041.
The spelling of 90473 in words is "ninety thousand, four hundred seventy-three".