2782115 has 16 divisors (see below), whose sum is σ = 3948480. Its totient is φ = 1841280.

The previous prime is 2782111. The next prime is 2782123. The reversal of 2782115 is 5112872.

It is not a de Polignac number, because 2782115 - 2² = 2782111 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2782111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356 + ... + 2385.

It is an arithmetic number, because the mean of its divisors is an integer number (246780).

2^2782115 is an apocalyptic number.

2782115 is a deficient number, since it is larger than the sum of its proper divisors (1166365).

2782115 is a wasteful number, since it uses less digits than its factorization.

2782115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782.

The product of its digits is 1120, while the sum is 26.

The square root of 2782115 is about 1667.9673258191. The cubic root of 2782115 is about 140.6452359356.

Adding to 2782115 its reverse (5112872), we get a palindrome (7894987).

The spelling of 2782115 in words is "two million, seven hundred eighty-two thousand, one hundred fifteen".