2109407 has 8 divisors (see below), whose sum is σ = 2214336. Its totient is φ = 2007072.

The previous prime is 2109403. The next prime is 2109421. The reversal of 2109407 is 7049012.

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 2109407 - 2² = 2109403 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 (2109403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1133 + ... + 2345.

It is an arithmetic number, because the mean of its divisors is an integer number (276792).

2^2109407 is an apocalyptic number.

2109407 is a deficient number, since it is larger than the sum of its proper divisors (104929).

2109407 is a wasteful number, since it uses less digits than its factorization.

2109407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2109407 is about 1452.3797712720. The cubic root of 2109407 is about 128.2488445217.

The spelling of 2109407 in words is "two million, one hundred nine thousand, four hundred seven".