7056857 has 2 divisors, whose sum is σ = 7056858. Its totient is φ = 7056856.

The previous prime is 7056851. The next prime is 7056893. The reversal of 7056857 is 7586507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3748096 + 3308761 = 1936^2 + 1819^2 .

It is an emirp because it is prime and its reverse (7586507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7056857 - 2⁶ = 7056793 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7056857.

It is not a weakly prime, because it can be changed into another prime (7056851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3528428 + 3528429.

It is an arithmetic number, because the mean of its divisors is an integer number (3528429).

Almost surely, 2^7056857 is an apocalyptic number.

It is an amenable number.

7056857 is a deficient number, since it is larger than the sum of its proper divisors (1).

7056857 is an equidigital number, since it uses as much as digits as its factorization.

7056857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 7056857 is about 2656.4745434504. The cubic root of 7056857 is about 191.8096438737.

The spelling of 7056857 in words is "seven million, fifty-six thousand, eight hundred fifty-seven".