2857634 has 16 divisors (see below), whose sum is σ = 4656960. Its totient is φ = 1307280.

The previous prime is 2857633. The next prime is 2857637. The reversal of 2857634 is 4367582.

It is a happy number.

2857634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2857594 and 2857603.

It is not an unprimeable number, because it can be changed into a prime (2857633) 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 7 ways as a sum of consecutive naturals, for example, 2987 + ... + 3825.

It is an arithmetic number, because the mean of its divisors is an integer number (291060).

2^2857634 is an apocalyptic number.

2857634 is a deficient number, since it is larger than the sum of its proper divisors (1799326).

2857634 is a wasteful number, since it uses less digits than its factorization.

2857634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985.

The product of its digits is 40320, while the sum is 35.

The square root of 2857634 is about 1690.4537852305. The cubic root of 2857634 is about 141.9064715061.

The spelling of 2857634 in words is "two million, eight hundred fifty-seven thousand, six hundred thirty-four".