2093509 has 8 divisors (see below), whose sum is σ = 2312352. Its totient is φ = 1879440.

The previous prime is 2093503. The next prime is 2093513. The reversal of 2093509 is 9053902.

2093509 = 116² + 117² + ... + 198².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2093509 - 2⁹ = 2092997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2093503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234 + ... + 2059.

It is an arithmetic number, because the mean of its divisors is an integer number (289044).

2^2093509 is an apocalyptic number.

It is an amenable number.

2093509 is a deficient number, since it is larger than the sum of its proper divisors (218843).

2093509 is a wasteful number, since it uses less digits than its factorization.

2093509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 2093509 is about 1446.8963335360. The cubic root of 2093509 is about 127.9258400171.

The spelling of 2093509 in words is "two million, ninety-three thousand, five hundred nine".