9090723 has 4 divisors (see below), whose sum is σ = 12120968. Its totient is φ = 6060480.

The previous prime is 9090703. The next prime is 9090749. The reversal of 9090723 is 3270909.

9090723 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3270909 = 3 ⋅1090303.

It is not a de Polignac number, because 9090723 - 2⁵ = 9090691 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

9090723 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9090703) 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, 1515118 + ... + 1515123.

It is an arithmetic number, because the mean of its divisors is an integer number (3030242).

Almost surely, 2^9090723 is an apocalyptic number.

9090723 is a deficient number, since it is larger than the sum of its proper divisors (3030245).

9090723 is a wasteful number, since it uses less digits than its factorization.

9090723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030244.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 9090723 is about 3015.0825859336. The cubic root of 9090723 is about 208.7049781593.

The spelling of 9090723 in words is "nine million, ninety thousand, seven hundred twenty-three".