2865966 has 16 divisors (see below), whose sum is σ = 5854464. Its totient is φ = 934904.

The previous prime is 2865953. The next prime is 2865971. The reversal of 2865966 is 6695682.

It is a super-2 number, since 2×2865966² = 16427522226312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4800 + ... + 5363.

It is an arithmetic number, because the mean of its divisors is an integer number (365904).

2^2865966 is an apocalyptic number.

2865966 is an abundant number, since it is smaller than the sum of its proper divisors (2988498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2865966 is a wasteful number, since it uses less digits than its factorization.

2865966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10215.

The product of its digits is 155520, while the sum is 42.

The square root of 2865966 is about 1692.9164184921. The cubic root of 2865966 is about 142.0442565221.

The spelling of 2865966 in words is "two million, eight hundred sixty-five thousand, nine hundred sixty-six".