2698878 has 32 divisors (see below), whose sum is σ = 6644736. Its totient is φ = 711648.

The previous prime is 2698867. The next prime is 2698921. The reversal of 2698878 is 8788962.

It is a happy number.

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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1926 + ... + 3017.

It is an arithmetic number, because the mean of its divisors is an integer number (207648).

2^2698878 is an apocalyptic number.

2698878 is an abundant number, since it is smaller than the sum of its proper divisors (3945858).

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

2698878 is a wasteful number, since it uses less digits than its factorization.

2698878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4968.

The product of its digits is 387072, while the sum is 48.

The square root of 2698878 is about 1642.8262233115. The cubic root of 2698878 is about 139.2283739557.

The spelling of 2698878 in words is "two million, six hundred ninety-eight thousand, eight hundred seventy-eight".