2396809 has 4 divisors (see below), whose sum is σ = 2429716. Its totient is φ = 2363904.

The previous prime is 2396803. The next prime is 2396833. The reversal of 2396809 is 9086932.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1452025 + 944784 = 1205^2 + 972^2 .

It is a cyclic number.

It is not a de Polignac number, because 2396809 - 2¹¹ = 2394761 is a prime.

It is a Duffinian number.

2396809 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2396803) 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, 16344 + ... + 16489.

It is an arithmetic number, because the mean of its divisors is an integer number (607429).

2^2396809 is an apocalyptic number.

It is an amenable number.

2396809 is a deficient number, since it is larger than the sum of its proper divisors (32907).

2396809 is an equidigital number, since it uses as much as digits as its factorization.

2396809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32906.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 2396809 is about 1548.1631051023. The cubic root of 2396809 is about 133.8272259059.

The spelling of 2396809 in words is "two million, three hundred ninety-six thousand, eight hundred nine".