90773 has 4 divisors (see below), whose sum is σ = 92928. Its totient is φ = 88620.

The previous prime is 90749. The next prime is 90787. The reversal of 90773 is 37709.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37709 = 7 ⋅5387.

It is a cyclic number.

It is not a de Polignac number, because 90773 - 2⁶ = 90709 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013 + ... + 1098.

It is an arithmetic number, because the mean of its divisors is an integer number (23232).

2⁹⁰⁷⁷³ is an apocalyptic number.

It is an amenable number.

90773 is a deficient number, since it is larger than the sum of its proper divisors (2155).

90773 is a wasteful number, since it uses less digits than its factorization.

90773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2154.

The product of its (nonzero) digits is 1323, while the sum is 26.

The square root of 90773 is about 301.2855788119. The cubic root of 90773 is about 44.9419828455.

The spelling of 90773 in words is "ninety thousand, seven hundred seventy-three".