2582391 has 8 divisors (see below), whose sum is σ = 3935104. Its totient is φ = 1475640.

The previous prime is 2582383. The next prime is 2582399. The reversal of 2582391 is 1932852.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2582383) and next prime (2582399).

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

It is not a de Polignac number, because 2582391 - 2³ = 2582383 is a prime.

It is a Duffinian number.

2582391 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2582399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61465 + ... + 61506.

It is an arithmetic number, because the mean of its divisors is an integer number (491888).

2^2582391 is an apocalyptic number.

2582391 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2582391 is a deficient number, since it is larger than the sum of its proper divisors (1352713).

2582391 is a wasteful number, since it uses less digits than its factorization.

2582391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122981.

The product of its digits is 4320, while the sum is 30.

The square root of 2582391 is about 1606.9819538501. The cubic root of 2582391 is about 137.1957526303.

The spelling of 2582391 in words is "two million, five hundred eighty-two thousand, three hundred ninety-one".