2782975 has 12 divisors (see below), whose sum is σ = 3716776. Its totient is φ = 2054880.

The previous prime is 2782973. The next prime is 2782981. The reversal of 2782975 is 5792872.

It is not a de Polignac number, because 2782975 - 2¹ = 2782973 is a prime.

It is a Duffinian number.

2782975 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2782973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3957 + ... + 4606.

2^2782975 is an apocalyptic number.

2782975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2782975 is a deficient number, since it is larger than the sum of its proper divisors (933801).

2782975 is a wasteful number, since it uses less digits than its factorization.

2782975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8586 (or 8581 counting only the distinct ones).

The product of its digits is 70560, while the sum is 40.

The square root of 2782975 is about 1668.2251047146. The cubic root of 2782975 is about 140.6597264033.

The spelling of 2782975 in words is "two million, seven hundred eighty-two thousand, nine hundred seventy-five".