2912661 has 12 divisors (see below), whose sum is σ = 4454892. Its totient is φ = 1827456.

The previous prime is 2912659. The next prime is 2912683. The reversal of 2912661 is 1662192.

2912661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 864900 + 2047761 = 930^2 + 1431^2 .

It is not a de Polignac number, because 2912661 - 2¹ = 2912659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2912621) 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 11 ways as a sum of consecutive naturals, for example, 9366 + ... + 9671.

It is an arithmetic number, because the mean of its divisors is an integer number (371241).

2^2912661 is an apocalyptic number.

It is an amenable number.

2912661 is a deficient number, since it is larger than the sum of its proper divisors (1542231).

2912661 is a wasteful number, since it uses less digits than its factorization.

2912661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19060 (or 19057 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 2912661 is about 1706.6519856139. The cubic root of 2912661 is about 142.8115436847.

The spelling of 2912661 in words is "two million, nine hundred twelve thousand, six hundred sixty-one".