2861385 has 8 divisors (see below), whose sum is σ = 4578240. Its totient is φ = 1526064.

The previous prime is 2861377. The next prime is 2861387. The reversal of 2861385 is 5831682.

It is a happy number.

2861385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2861385 - 2³ = 2861377 is a prime.

It is an Ulam number.

It is a Curzon number.

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, 95365 + ... + 95394.

It is an arithmetic number, because the mean of its divisors is an integer number (572280).

2^2861385 is an apocalyptic number.

It is an amenable number.

2861385 is a deficient number, since it is larger than the sum of its proper divisors (1716855).

2861385 is a wasteful number, since it uses less digits than its factorization.

2861385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190767.

The product of its digits is 11520, while the sum is 33.

The square root of 2861385 is about 1691.5628868003. The cubic root of 2861385 is about 141.9685343228.

The spelling of 2861385 in words is "two million, eight hundred sixty-one thousand, three hundred eighty-five".