2584381 has 2 divisors, whose sum is σ = 2584382. Its totient is φ = 2584380.

The previous prime is 2584369. The next prime is 2584403. The reversal of 2584381 is 1834852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1651225 + 933156 = 1285^2 + 966^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2584381 is a prime.

It is a super-2 number, since 2×2584381² = 13358050306322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2584301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1292190 + 1292191.

It is an arithmetic number, because the mean of its divisors is an integer number (1292191).

2^2584381 is an apocalyptic number.

It is an amenable number.

2584381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2584381 is an equidigital number, since it uses as much as digits as its factorization.

2584381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 31.

The square root of 2584381 is about 1607.6010077130. The cubic root of 2584381 is about 137.2309847656.

The spelling of 2584381 in words is "two million, five hundred eighty-four thousand, three hundred eighty-one".