2861995 has 4 divisors (see below), whose sum is σ = 3434400. Its totient is φ = 2289592.

The previous prime is 2861977. The next prime is 2862011. The reversal of 2861995 is 5991682.

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 2861995 - 2⁹ = 2861483 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 286195 + ... + 286204.

It is an arithmetic number, because the mean of its divisors is an integer number (858600).

2^2861995 is an apocalyptic number.

2861995 is a deficient number, since it is larger than the sum of its proper divisors (572405).

2861995 is an equidigital number, since it uses as much as digits as its factorization.

2861995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572404.

The product of its digits is 38880, while the sum is 40.

The square root of 2861995 is about 1691.7431838196. The cubic root of 2861995 is about 141.9786220545.

The spelling of 2861995 in words is "two million, eight hundred sixty-one thousand, nine hundred ninety-five".