4002857 has 2 divisors, whose sum is σ = 4002858. Its totient is φ = 4002856.

The previous prime is 4002847. The next prime is 4002877. The reversal of 4002857 is 7582004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2374681 + 1628176 = 1541^2 + 1276^2 .

It is a cyclic number.

It is not a de Polignac number, because 4002857 - 2¹⁴ = 3986473 is a prime.

It is not a weakly prime, because it can be changed into another prime (4002847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001428 + 2001429.

It is an arithmetic number, because the mean of its divisors is an integer number (2001429).

Almost surely, 2^4002857 is an apocalyptic number.

It is an amenable number.

4002857 is a deficient number, since it is larger than the sum of its proper divisors (1).

4002857 is an equidigital number, since it uses as much as digits as its factorization.

4002857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 4002857 is about 2000.7141225073. The cubic root of 4002857 is about 158.7778895758. Note that the first 3 decimals are identical.

The spelling of 4002857 in words is "four million, two thousand, eight hundred fifty-seven".