2103407 has 2 divisors, whose sum is σ = 2103408. Its totient is φ = 2103406.

The previous prime is 2103403. The next prime is 2103449. The reversal of 2103407 is 7043012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2103407 - 2² = 2103403 is a prime.

It is a super-3 number, since 3×2103407³ = 27918443333207880429, which contains 333 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051703 + 1051704.

It is an arithmetic number, because the mean of its divisors is an integer number (1051704).

2^2103407 is an apocalyptic number.

2103407 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103407 is an equidigital number, since it uses as much as digits as its factorization.

2103407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 2103407 is about 1450.3127248976. The cubic root of 2103407 is about 128.1271319891.

Adding to 2103407 its reverse (7043012), we get a palindrome (9146419).

The spelling of 2103407 in words is "two million, one hundred three thousand, four hundred seven".