2046661 has 4 divisors (see below), whose sum is σ = 2154400. Its totient is φ = 1938924.

The previous prime is 2046641. The next prime is 2046677. The reversal of 2046661 is 1666402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1666402 = 2 ⋅833201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2046661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2046631) 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 3 ways as a sum of consecutive naturals, for example, 53841 + ... + 53878.

It is an arithmetic number, because the mean of its divisors is an integer number (538600).

2^2046661 is an apocalyptic number.

It is an amenable number.

2046661 is a deficient number, since it is larger than the sum of its proper divisors (107739).

2046661 is a wasteful number, since it uses less digits than its factorization.

2046661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107738.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2046661 is about 1430.6156017603. The cubic root of 2046661 is about 126.9644019516.

The spelling of 2046661 in words is "two million, forty-six thousand, six hundred sixty-one".