2009907 has 8 divisors (see below), whose sum is σ = 2977680. Its totient is φ = 1339920.

The previous prime is 2009897. The next prime is 2009911. The reversal of 2009907 is 7099002.

It is not a de Polignac number, because 2009907 - 2¹⁰ = 2008883 is a prime.

It is a super-2 number, since 2×2009907² = 8079452297298, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 74441 = 2009907 / (2 + 0 + 0 + 9 + 9 + 0 + 7).

It is not an unprimeable number, because it can be changed into a prime (2009957) 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, 37194 + ... + 37247.

It is an arithmetic number, because the mean of its divisors is an integer number (372210).

2^2009907 is an apocalyptic number.

2009907 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2009907 is a deficient number, since it is larger than the sum of its proper divisors (967773).

2009907 is an equidigital number, since it uses as much as digits as its factorization.

2009907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74450 (or 74444 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 2009907 is about 1417.7118889252. The cubic root of 2009907 is about 126.1997963969.

It can be divided in two parts, 2009 and 907, that added together give a square (2916 = 54²).

The spelling of 2009907 in words is "two million, nine thousand, nine hundred seven".