2857628 has 12 divisors (see below), whose sum is σ = 5029752. Its totient is φ = 1420560.

The previous prime is 2857609. The next prime is 2857633. The reversal of 2857628 is 8267582.

It is a d-powerful number, because it can be written as 2⁹ + 8³ + 5⁹ + 7⁷ + 6⁶ + 2¹⁵ + 8³ .

It is a junction number, because it is equal to n+sod(n) for n = 2857591 and 2857600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250 + ... + 2697.

It is an arithmetic number, because the mean of its divisors is an integer number (419146).

2^2857628 is an apocalyptic number.

It is an amenable number.

2857628 is a deficient number, since it is larger than the sum of its proper divisors (2172124).

2857628 is a wasteful number, since it uses less digits than its factorization.

2857628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4132 (or 4130 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 2857628 is about 1690.4520105581. The cubic root of 2857628 is about 141.9063721886.

The spelling of 2857628 in words is "two million, eight hundred fifty-seven thousand, six hundred twenty-eight".