2798955 has 20 divisors (see below), whose sum is σ = 5018112. Its totient is φ = 1492560.

The previous prime is 2798951. The next prime is 2798963. The reversal of 2798955 is 5598972.

It is a happy number.

It is not a de Polignac number, because 2798955 - 2² = 2798951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2798955.

It is not an unprimeable number, because it can be changed into a prime (2798951) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 3051 + ... + 3860.

2^2798955 is an apocalyptic number.

2798955 is a deficient number, since it is larger than the sum of its proper divisors (2219157).

2798955 is an equidigital number, since it uses as much as digits as its factorization.

2798955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6928 (or 6919 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 2798955 is about 1673.0077704542. The cubic root of 2798955 is about 140.9284381091.

The spelling of 2798955 in words is "two million, seven hundred ninety-eight thousand, nine hundred fifty-five".