2825866 has 4 divisors (see below), whose sum is σ = 4238802. Its totient is φ = 1412932.

The previous prime is 2825863. The next prime is 2825869. The reversal of 2825866 is 6685282.

2825866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2825863) and next prime (2825869).

It can be written as a sum of positive squares in only one way, i.e., 2653641 + 172225 = 1629^2 + 415^2 .

It is not an unprimeable number, because it can be changed into a prime (2825861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 706465 + ... + 706468.

2^2825866 is an apocalyptic number.

2825866 is a deficient number, since it is larger than the sum of its proper divisors (1412936).

2825866 is a wasteful number, since it uses less digits than its factorization.

2825866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412935.

The product of its digits is 46080, while the sum is 37.

The square root of 2825866 is about 1681.0312311198. The cubic root of 2825866 is about 141.3786579346.

The spelling of 2825866 in words is "two million, eight hundred twenty-five thousand, eight hundred sixty-six".