9090439 has 4 divisors (see below), whose sum is σ = 9103480. Its totient is φ = 9077400.

The previous prime is 9090437. The next prime is 9090449. The reversal of 9090439 is 9340909.

9090439 is digitally balanced in base 2, because in such base 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: 9340909 = 37 ⋅252457.

It is a cyclic number.

It is not a de Polignac number, because 9090439 - 2¹ = 9090437 is a prime.

It is a Duffinian number.

9090439 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9090437) 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, 5412 + ... + 6889.

It is an arithmetic number, because the mean of its divisors is an integer number (2275870).

Almost surely, 2^9090439 is an apocalyptic number.

9090439 is a deficient number, since it is larger than the sum of its proper divisors (13041).

9090439 is a wasteful number, since it uses less digits than its factorization.

9090439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13040.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 9090439 is about 3015.0354890117. The cubic root of 9090439 is about 208.7028047776.

The spelling of 9090439 in words is "nine million, ninety thousand, four hundred thirty-nine".