2865215 has 8 divisors (see below), whose sum is σ = 3447360. Its totient is φ = 2286112.

The previous prime is 2865211. The next prime is 2865241. The reversal of 2865215 is 5125682.

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

It is a cyclic number.

It is not a de Polignac number, because 2865215 - 2² = 2865211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2865211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3197 + ... + 3993.

It is an arithmetic number, because the mean of its divisors is an integer number (430920).

2^2865215 is an apocalyptic number.

2865215 is a deficient number, since it is larger than the sum of its proper divisors (582145).

2865215 is an equidigital number, since it uses as much as digits as its factorization.

2865215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521.

The product of its digits is 4800, while the sum is 29.

The square root of 2865215 is about 1692.6945973802. The cubic root of 2865215 is about 142.0318483084.

The spelling of 2865215 in words is "two million, eight hundred sixty-five thousand, two hundred fifteen".