2864251 has 4 divisors (see below), whose sum is σ = 3084592. Its totient is φ = 2643912.

The previous prime is 2864249. The next prime is 2864261. The reversal of 2864251 is 1524682.

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 2864251 - 2¹ = 2864249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2864201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110151 + ... + 110176.

It is an arithmetic number, because the mean of its divisors is an integer number (771148).

2^2864251 is an apocalyptic number.

2864251 is a deficient number, since it is larger than the sum of its proper divisors (220341).

2864251 is a wasteful number, since it uses less digits than its factorization.

2864251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220340.

The product of its digits is 3840, while the sum is 28.

The square root of 2864251 is about 1692.4098203449. The cubic root of 2864251 is about 142.0159176760.

The spelling of 2864251 in words is "two million, eight hundred sixty-four thousand, two hundred fifty-one".