2083397909 has 4 divisors (see below), whose sum is σ = 2083546080. Its totient is φ = 2083249740.

The previous prime is 2083397893. The next prime is 2083397933. The reversal of 2083397909 is 9097933802.

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.

It is a cyclic number.

It is not a de Polignac number, because 2083397909 - 2⁴ = 2083397893 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 (2083397959) 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, 50489 + ... + 81950.

It is an arithmetic number, because the mean of its divisors is an integer number (520886520).

Almost surely, 2^2083397909 is an apocalyptic number.

It is an amenable number.

2083397909 is a deficient number, since it is larger than the sum of its proper divisors (148171).

2083397909 is a wasteful number, since it uses less digits than its factorization.

2083397909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148170.

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 2083397909 is about 45644.2538442683. The cubic root of 2083397909 is about 1277.1955831709.

The spelling of 2083397909 in words is "two billion, eighty-three million, three hundred ninety-seven thousand, nine hundred nine".