2758878 has 12 divisors (see below), whose sum is σ = 5977608. Its totient is φ = 919620.

The previous prime is 2758871. The next prime is 2758891. The reversal of 2758878 is 8788572.

It is a happy number.

2758878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2758878² = 15222815637768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2758871) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 76618 + ... + 76653.

It is an arithmetic number, because the mean of its divisors is an integer number (498134).

2^2758878 is an apocalyptic number.

2758878 is an abundant number, since it is smaller than the sum of its proper divisors (3218730).

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

2758878 is a wasteful number, since it uses less digits than its factorization.

2758878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153279 (or 153276 counting only the distinct ones).

The product of its digits is 250880, while the sum is 45.

The square root of 2758878 is about 1660.9870559399. The cubic root of 2758878 is about 140.2525712779.

The spelling of 2758878 in words is "two million, seven hundred fifty-eight thousand, eight hundred seventy-eight".