2791886 has 4 divisors (see below), whose sum is σ = 4187832. Its totient is φ = 1395942.

The previous prime is 2791849. The next prime is 2791897. The reversal of 2791886 is 6881972.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697970 + ... + 697973.

It is an arithmetic number, because the mean of its divisors is an integer number (1046958).

2^2791886 is an apocalyptic number.

2791886 is a deficient number, since it is larger than the sum of its proper divisors (1395946).

2791886 is a wasteful number, since it uses less digits than its factorization.

2791886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395945.

The product of its digits is 48384, while the sum is 41.

The square root of 2791886 is about 1670.8937728054. The cubic root of 2791886 is about 140.8096958178.

The spelling of 2791886 in words is "two million, seven hundred ninety-one thousand, eight hundred eighty-six".