2779251 has 16 divisors (see below), whose sum is σ = 3953664. Its totient is φ = 1732544.

The previous prime is 2779247. The next prime is 2779253. The reversal of 2779251 is 1529772.

2779251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2779251 - 2² = 2779247 is a prime.

It is a super-2 number, since 2×2779251² = 15448472242002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2779253) 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 15 ways as a sum of consecutive naturals, for example, 2815 + ... + 3671.

It is an arithmetic number, because the mean of its divisors is an integer number (247104).

2^2779251 is an apocalyptic number.

2779251 is a deficient number, since it is larger than the sum of its proper divisors (1174413).

2779251 is a wasteful number, since it uses less digits than its factorization.

2779251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930.

The product of its digits is 8820, while the sum is 33.

The square root of 2779251 is about 1667.1085747485. The cubic root of 2779251 is about 140.5969577665.

The spelling of 2779251 in words is "two million, seven hundred seventy-nine thousand, two hundred fifty-one".