2857069 has 4 divisors (see below), whose sum is σ = 2868444. Its totient is φ = 2845696.

The previous prime is 2857067. The next prime is 2857073. The reversal of 2857069 is 9607582.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1729225 + 1127844 = 1315^2 + 1062^2 .

It is a cyclic number.

It is not a de Polignac number, because 2857069 - 2¹ = 2857067 is a prime.

It is a super-2 number, since 2×2857069² = 16325686541522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2857061) 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, 5302 + ... + 5815.

It is an arithmetic number, because the mean of its divisors is an integer number (717111).

2^2857069 is an apocalyptic number.

It is an amenable number.

2857069 is a deficient number, since it is larger than the sum of its proper divisors (11375).

2857069 is a wasteful number, since it uses less digits than its factorization.

2857069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11374.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 2857069 is about 1690.2866620784. The cubic root of 2857069 is about 141.8971184958.

The spelling of 2857069 in words is "two million, eight hundred fifty-seven thousand, sixty-nine".