2128763 has 16 divisors (see below), whose sum is σ = 2654400. Its totient is φ = 1662336.

The previous prime is 2128751. The next prime is 2128769. The reversal of 2128763 is 3678212.

It is a happy number.

It is not a de Polignac number, because 2128763 - 2⁴ = 2128747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2128769) 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, 13481 + ... + 13637.

It is an arithmetic number, because the mean of its divisors is an integer number (165900).

2^2128763 is an apocalyptic number.

2128763 is a deficient number, since it is larger than the sum of its proper divisors (525637).

2128763 is a wasteful number, since it uses less digits than its factorization.

2128763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326.

The product of its digits is 4032, while the sum is 29.

The square root of 2128763 is about 1459.0281011687. The cubic root of 2128763 is about 128.6399228811.

The spelling of 2128763 in words is "two million, one hundred twenty-eight thousand, seven hundred sixty-three".