2864819 has 4 divisors (see below), whose sum is σ = 2868600. Its totient is φ = 2861040.

The previous prime is 2864761. The next prime is 2864831. The reversal of 2864819 is 9184682.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2864819 - 2¹² = 2860723 is a prime.

It is a super-2 number, since 2×2864819² = 16414375805522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2864879) 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, 317 + ... + 2414.

It is an arithmetic number, because the mean of its divisors is an integer number (717150).

2^2864819 is an apocalyptic number.

2864819 is a deficient number, since it is larger than the sum of its proper divisors (3781).

2864819 is a wasteful number, since it uses less digits than its factorization.

2864819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780.

The product of its digits is 27648, while the sum is 38.

The square root of 2864819 is about 1692.5776200813. The cubic root of 2864819 is about 142.0253046222.

The spelling of 2864819 in words is "two million, eight hundred sixty-four thousand, eight hundred nineteen".