2781095 has 4 divisors (see below), whose sum is σ = 3337320. Its totient is φ = 2224872.

The previous prime is 2781089. The next prime is 2781109. The reversal of 2781095 is 5901872.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2781095 - 2¹² = 2776999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278105 + ... + 278114.

It is an arithmetic number, because the mean of its divisors is an integer number (834330).

2^2781095 is an apocalyptic number.

2781095 is a deficient number, since it is larger than the sum of its proper divisors (556225).

2781095 is an equidigital number, since it uses as much as digits as its factorization.

2781095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556224.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 2781095 is about 1667.6615364036. The cubic root of 2781095 is about 140.6280456954.

The spelling of 2781095 in words is "two million, seven hundred eighty-one thousand, ninety-five".