2116775 has 12 divisors (see below), whose sum is σ = 2643432. Its totient is φ = 1681440.

The previous prime is 2116757. The next prime is 2116783. The reversal of 2116775 is 5776112.

It is not a de Polignac number, because 2116775 - 2⁸ = 2116519 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5489 + ... + 5861.

It is an arithmetic number, because the mean of its divisors is an integer number (220286).

2^2116775 is an apocalyptic number.

2116775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2116775 is a deficient number, since it is larger than the sum of its proper divisors (526657).

2116775 is a wasteful number, since it uses less digits than its factorization.

2116775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 605 counting only the distinct ones).

The product of its digits is 2940, while the sum is 29.

The square root of 2116775 is about 1454.9140868106. The cubic root of 2116775 is about 128.3979921918.

The spelling of 2116775 in words is "two million, one hundred sixteen thousand, seven hundred seventy-five".