2857801 has 2 divisors, whose sum is σ = 2857802. Its totient is φ = 2857800.

The previous prime is 2857763. The next prime is 2857831. The reversal of 2857801 is 1087582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1537600 + 1320201 = 1240^2 + 1149^2 .

It is a cyclic number.

It is not a de Polignac number, because 2857801 - 2¹⁵ = 2825033 is a prime.

It is not a weakly prime, because it can be changed into another prime (2857831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1428900 + 1428901.

It is an arithmetic number, because the mean of its divisors is an integer number (1428901).

2^2857801 is an apocalyptic number.

It is an amenable number.

2857801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2857801 is an equidigital number, since it uses as much as digits as its factorization.

2857801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 2857801 is about 1690.5031795297. The cubic root of 2857801 is about 141.9092357882.

The spelling of 2857801 in words is "two million, eight hundred fifty-seven thousand, eight hundred one".