2564827 has 4 divisors (see below), whose sum is σ = 2603176. Its totient is φ = 2526480.

The previous prime is 2564819. The next prime is 2564831. The reversal of 2564827 is 7284652.

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 2564827 - 2³ = 2564819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2564792 and 2564801.

It is not an unprimeable number, because it can be changed into a prime (2564857) 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, 19074 + ... + 19207.

It is an arithmetic number, because the mean of its divisors is an integer number (650794).

2^2564827 is an apocalyptic number.

2564827 is a deficient number, since it is larger than the sum of its proper divisors (38349).

2564827 is an equidigital number, since it uses as much as digits as its factorization.

2564827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38348.

The product of its digits is 26880, while the sum is 34.

The square root of 2564827 is about 1601.5077271122. The cubic root of 2564827 is about 136.8840014791.

The spelling of 2564827 in words is "two million, five hundred sixty-four thousand, eight hundred twenty-seven".