2089215786 has 32 divisors (see below), whose sum is σ = 4812963840. Its totient is φ = 592217136.

The previous prime is 2089215773. The next prime is 2089215797. The reversal of 2089215786 is 6875129802.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190506 + ... + 201173.

It is an arithmetic number, because the mean of its divisors is an integer number (150405120).

Almost surely, 2^2089215786 is an apocalyptic number.

2089215786 is an abundant number, since it is smaller than the sum of its proper divisors (2723748054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2089215786 is a wasteful number, since it uses less digits than its factorization.

2089215786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391818.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 2089215786 is about 45707.9400760962. The cubic root of 2089215786 is about 1278.3833321011.

The spelling of 2089215786 in words is "two billion, eighty-nine million, two hundred fifteen thousand, seven hundred eighty-six".