2870657 has 2 divisors, whose sum is σ = 2870658. Its totient is φ = 2870656.

The previous prime is 2870641. The next prime is 2870663. The reversal of 2870657 is 7560782.

2870657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2768896 + 101761 = 1664^2 + 319^2 .

It is a cyclic number.

It is not a de Polignac number, because 2870657 - 2⁴ = 2870641 is a prime.

It is a super-4 number, since 4×2870657⁴ (a number of 27 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2870617) 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 as a sum of consecutive naturals, namely, 1435328 + 1435329.

It is an arithmetic number, because the mean of its divisors is an integer number (1435329).

2^2870657 is an apocalyptic number.

It is an amenable number.

2870657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2870657 is an equidigital number, since it uses as much as digits as its factorization.

2870657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 2870657 is about 1694.3013309326. The cubic root of 2870657 is about 142.1217134062.

The spelling of 2870657 in words is "two million, eight hundred seventy thousand, six hundred fifty-seven".