2278899 has 24 divisors (see below), whose sum is σ = 3830112. Its totient is φ = 1278720.

The previous prime is 2278891. The next prime is 2278943. The reversal of 2278899 is 9988722.

2278899 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2278899 - 2³ = 2278891 is a prime.

2278899 is strictly pandigital in base 8.

2278899 is a lucky number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2278891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3547 + ... + 4139.

It is an arithmetic number, because the mean of its divisors is an integer number (159588).

2^2278899 is an apocalyptic number.

2278899 is a deficient number, since it is larger than the sum of its proper divisors (1551213).

2278899 is a wasteful number, since it uses less digits than its factorization.

2278899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 664 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 2278899 is about 1509.6022654991. The cubic root of 2278899 is about 131.5956981930.

The spelling of 2278899 in words is "two million, two hundred seventy-eight thousand, eight hundred ninety-nine".