2861386 has 16 divisors (see below), whose sum is σ = 4727808. Its totient is φ = 1288000.

The previous prime is 2861377. The next prime is 2861387. The reversal of 2861386 is 6831682.

2861386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2861387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1911 + ... + 3061.

It is an arithmetic number, because the mean of its divisors is an integer number (295488).

2^2861386 is an apocalyptic number.

2861386 is a deficient number, since it is larger than the sum of its proper divisors (1866422).

2861386 is a wasteful number, since it uses less digits than its factorization.

2861386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277.

The product of its digits is 13824, while the sum is 34.

The square root of 2861386 is about 1691.5631823849. The cubic root of 2861386 is about 141.9685508612.

The spelling of 2861386 in words is "two million, eight hundred sixty-one thousand, three hundred eighty-six".