2091776 has 18 divisors (see below), whose sum is σ = 4175892. Its totient is φ = 1045760.

The previous prime is 2091773. The next prime is 2091797. The reversal of 2091776 is 6771902.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (2091773) 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 as a sum of consecutive naturals, namely, 3830 + ... + 4341.

It is an arithmetic number, because the mean of its divisors is an integer number (231994).

2^2091776 is an apocalyptic number.

It is an amenable number.

2091776 is a deficient number, since it is larger than the sum of its proper divisors (2084116).

2091776 is an frugal number, since it uses more digits than its factorization.

2091776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8187 (or 8173 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 2091776 is about 1446.2973414896. The cubic root of 2091776 is about 127.8905314066.

The spelling of 2091776 in words is "two million, ninety-one thousand, seven hundred seventy-six".