2578870 has 48 divisors (see below), whose sum is σ = 5704560. Its totient is φ = 834624.

The previous prime is 2578861. The next prime is 2578879. The reversal of 2578870 is 788752.

It is an interprime number because it is at equal distance from previous prime (2578861) and next prime (2578879).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2578879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9172 + ... + 9448.

It is an arithmetic number, because the mean of its divisors is an integer number (118845).

2^2578870 is an apocalyptic number.

2578870 is an abundant number, since it is smaller than the sum of its proper divisors (3125690).

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

2578870 is a wasteful number, since it uses less digits than its factorization.

2578870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 2578870 is about 1605.8860482612. The cubic root of 2578870 is about 137.1333703962.

The spelling of 2578870 in words is "two million, five hundred seventy-eight thousand, eight hundred seventy".