3102857 has 8 divisors (see below), whose sum is σ = 3374856. Its totient is φ = 2840832.

The previous prime is 3102851. The next prime is 3102859. The reversal of 3102857 is 7582013.

3102857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1201216 + 1901641 = 1096^2 + 1379^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3102857 - 2⁶ = 3102793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3102851) 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, 1838 + ... + 3095.

It is an arithmetic number, because the mean of its divisors is an integer number (421857).

Almost surely, 2^3102857 is an apocalyptic number.

3102857 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3102857 is a deficient number, since it is larger than the sum of its proper divisors (271999).

3102857 is a wasteful number, since it uses less digits than its factorization.

3102857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4987.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 3102857 is about 1761.4928327984. The cubic root of 3102857 is about 145.8547532800.

The spelling of 3102857 in words is "three million, one hundred two thousand, eight hundred fifty-seven".