2583978 has 8 divisors (see below), whose sum is σ = 5167968. Its totient is φ = 861324.

The previous prime is 2583947. The next prime is 2583979. The reversal of 2583978 is 8793852.

It is a sphenic number, since it is the product of 3 distinct primes.

2583978 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2583979) 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 3 ways as a sum of consecutive naturals, for example, 215326 + ... + 215337.

It is an arithmetic number, because the mean of its divisors is an integer number (645996).

2^2583978 is an apocalyptic number.

2583978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2583978 is a wasteful number, since it uses less digits than its factorization.

2583978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430668.

The product of its digits is 120960, while the sum is 42.

The square root of 2583978 is about 1607.4756607800. The cubic root of 2583978 is about 137.2238512764.

The spelling of 2583978 in words is "two million, five hundred eighty-three thousand, nine hundred seventy-eight".