2628771 has 4 divisors (see below), whose sum is σ = 3505032. Its totient is φ = 1752512.

The previous prime is 2628749. The next prime is 2628779. The reversal of 2628771 is 1778262.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2628771 - 2¹⁸ = 2366627 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 6⁷ + 2¹³ + 8⁷ + 7⁶ + 7⁶ + 1 .

It is a D-number.

2628771 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2628779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438126 + ... + 438131.

It is an arithmetic number, because the mean of its divisors is an integer number (876258).

2^2628771 is an apocalyptic number.

2628771 is a deficient number, since it is larger than the sum of its proper divisors (876261).

2628771 is an equidigital number, since it uses as much as digits as its factorization.

2628771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876260.

The product of its digits is 9408, while the sum is 33.

The square root of 2628771 is about 1621.3485128127. The cubic root of 2628771 is about 138.0122337401.

The spelling of 2628771 in words is "two million, six hundred twenty-eight thousand, seven hundred seventy-one".