2397878 has 16 divisors (see below), whose sum is σ = 4181760. Its totient is φ = 1009896.

The previous prime is 2397869. The next prime is 2397907. The reversal of 2397878 is 8787932.

It is a happy number.

2397878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 626 + ... + 2277.

It is an arithmetic number, because the mean of its divisors is an integer number (261360).

2^2397878 is an apocalyptic number.

2397878 is a deficient number, since it is larger than the sum of its proper divisors (1783882).

2397878 is a wasteful number, since it uses less digits than its factorization.

2397878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971.

The product of its digits is 169344, while the sum is 44.

The square root of 2397878 is about 1548.5083144756. The cubic root of 2397878 is about 133.8471190278.

The spelling of 2397878 in words is "two million, three hundred ninety-seven thousand, eight hundred seventy-eight".