2661069 has 16 divisors (see below), whose sum is σ = 3729600. Its totient is φ = 1685376.

The previous prime is 2661067. The next prime is 2661079. The reversal of 2661069 is 9601662.

2661069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2661069 - 2¹ = 2661067 is a prime.

It is a super-2 number, since 2×2661069² = 14162576445522, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6142 + ... + 6560.

It is an arithmetic number, because the mean of its divisors is an integer number (233100).

2^2661069 is an apocalyptic number.

2661069 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2661069 is a deficient number, since it is larger than the sum of its proper divisors (1068531).

2661069 is a wasteful number, since it uses less digits than its factorization.

2661069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 2661069 is about 1631.2783330873. The cubic root of 2661069 is about 138.5751567657.

The spelling of 2661069 in words is "two million, six hundred sixty-one thousand, sixty-nine".