4109857 has 2 divisors, whose sum is σ = 4109858. Its totient is φ = 4109856.

The previous prime is 4109843. The next prime is 4109873. The reversal of 4109857 is 7589014.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2062096 + 2047761 = 1436^2 + 1431^2 .

It is a cyclic number.

It is not a de Polignac number, because 4109857 - 2¹¹ = 4107809 is a prime.

It is not a weakly prime, because it can be changed into another prime (4109557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2054928 + 2054929.

It is an arithmetic number, because the mean of its divisors is an integer number (2054929).

Almost surely, 2^4109857 is an apocalyptic number.

It is an amenable number.

4109857 is a deficient number, since it is larger than the sum of its proper divisors (1).

4109857 is an equidigital number, since it uses as much as digits as its factorization.

4109857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 4109857 is about 2027.2782246155. The cubic root of 4109857 is about 160.1802266011.

The spelling of 4109857 in words is "four million, one hundred nine thousand, eight hundred fifty-seven".