2591398 has 8 divisors (see below), whose sum is σ = 3953160. Its totient is φ = 1273680.

The previous prime is 2591389. The next prime is 2591401. The reversal of 2591398 is 8931952.

2591398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 10863 + ... + 11098.

It is an arithmetic number, because the mean of its divisors is an integer number (494145).

2^2591398 is an apocalyptic number.

2591398 is a deficient number, since it is larger than the sum of its proper divisors (1361762).

2591398 is a wasteful number, since it uses less digits than its factorization.

2591398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22022.

The product of its digits is 19440, while the sum is 37.

The square root of 2591398 is about 1609.7819728150. The cubic root of 2591398 is about 137.3550737464.

The spelling of 2591398 in words is "two million, five hundred ninety-one thousand, three hundred ninety-eight".