2661307 has 16 divisors (see below), whose sum is σ = 3094272. Its totient is φ = 2265120.

The previous prime is 2661283. The next prime is 2661317. The reversal of 2661307 is 7031662.

It is not a de Polignac number, because 2661307 - 2¹⁵ = 2628539 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (2661317) 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 15 ways as a sum of consecutive naturals, for example, 16873 + ... + 17029.

It is an arithmetic number, because the mean of its divisors is an integer number (193392).

2^2661307 is an apocalyptic number.

2661307 is a deficient number, since it is larger than the sum of its proper divisors (432965).

2661307 is a wasteful number, since it uses less digits than its factorization.

2661307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 2661307 is about 1631.3512803808. The cubic root of 2661307 is about 138.5792879255.

Adding to 2661307 its reverse (7031662), we get a palindrome (9692969).

The spelling of 2661307 in words is "two million, six hundred sixty-one thousand, three hundred seven".