90750223 has 4 divisors (see below), whose sum is σ = 91899040. Its totient is φ = 89601408.

The previous prime is 90750221. The next prime is 90750229. The reversal of 90750223 is 32205709.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90750223 - 2¹ = 90750221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90750191 and 90750200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90750221) 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, 574290 + ... + 574447.

It is an arithmetic number, because the mean of its divisors is an integer number (22974760).

Almost surely, 2^90750223 is an apocalyptic number.

90750223 is a deficient number, since it is larger than the sum of its proper divisors (1148817).

90750223 is a wasteful number, since it uses less digits than its factorization.

90750223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148816.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 90750223 is about 9526.2911460862. The cubic root of 90750223 is about 449.3822354422.

The spelling of 90750223 in words is "ninety million, seven hundred fifty thousand, two hundred twenty-three".