2309913 has 12 divisors (see below), whose sum is σ = 3481920. Its totient is φ = 1472856.

The previous prime is 2309911. The next prime is 2309921. The reversal of 2309913 is 3199032.

It is not a de Polignac number, because 2309913 - 2¹ = 2309911 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2309911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5373 + ... + 5786.

It is an arithmetic number, because the mean of its divisors is an integer number (290160).

2^2309913 is an apocalyptic number.

2309913 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2309913 is a deficient number, since it is larger than the sum of its proper divisors (1172007).

2309913 is a wasteful number, since it uses less digits than its factorization.

2309913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11188 (or 11185 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 2309913 is about 1519.8397941888. The cubic root of 2309913 is about 132.1899812589.

The spelling of 2309913 in words is "two million, three hundred nine thousand, nine hundred thirteen".