2857093 has 2 divisors, whose sum is σ = 2857094. Its totient is φ = 2857092.

The previous prime is 2857079. The next prime is 2857097. The reversal of 2857093 is 3907582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2244004 + 613089 = 1498^2 + 783^2 .

It is a cyclic number.

It is not a de Polignac number, because 2857093 - 2⁵ = 2857061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2857097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1428546 + 1428547.

It is an arithmetic number, because the mean of its divisors is an integer number (1428547).

2^2857093 is an apocalyptic number.

2857093 is the 904-th centered heptagonal number.

It is an amenable number.

2857093 is a deficient number, since it is larger than the sum of its proper divisors (1).

2857093 is an equidigital number, since it uses as much as digits as its factorization.

2857093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 2857093 is about 1690.2937614509. The cubic root of 2857093 is about 141.8975158169.

It can be divided in two parts, 28 and 57093, that added together give a square (57121 = 239²).

The spelling of 2857093 in words is "two million, eight hundred fifty-seven thousand, ninety-three".