2164766 has 4 divisors (see below), whose sum is σ = 3247152. Its totient is φ = 1082382.

The previous prime is 2164739. The next prime is 2164787. The reversal of 2164766 is 6674612.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541190 + ... + 541193.

It is an arithmetic number, because the mean of its divisors is an integer number (811788).

2^2164766 is an apocalyptic number.

2164766 is a deficient number, since it is larger than the sum of its proper divisors (1082386).

2164766 is a wasteful number, since it uses less digits than its factorization.

2164766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082385.

The product of its digits is 12096, while the sum is 32.

The square root of 2164766 is about 1471.3143783706. The cubic root of 2164766 is about 129.3610859658.

The spelling of 2164766 in words is "two million, one hundred sixty-four thousand, seven hundred sixty-six".