2775983 has 8 divisors (see below), whose sum is σ = 3188352. Its totient is φ = 2367576.

The previous prime is 2775959. The next prime is 2775989. The reversal of 2775983 is 3895772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2775983 - 2¹⁴ = 2759599 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 7 + 7⁵ + 5⁷ + 9⁶ + 8⁵ + 3⁹ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2775983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2775989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 716 + ... + 2462.

It is an arithmetic number, because the mean of its divisors is an integer number (398544).

2^2775983 is an apocalyptic number.

2775983 is a deficient number, since it is larger than the sum of its proper divisors (412369).

2775983 is a wasteful number, since it uses less digits than its factorization.

2775983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981.

The product of its digits is 105840, while the sum is 41.

The square root of 2775983 is about 1666.1281463321. The cubic root of 2775983 is about 140.5418288767.

The spelling of 2775983 in words is "two million, seven hundred seventy-five thousand, nine hundred eighty-three".