4068557 has 4 divisors (see below), whose sum is σ = 4178556. Its totient is φ = 3958560.

The previous prime is 4068541. The next prime is 4068563. The reversal of 4068557 is 7558604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3865156 + 203401 = 1966^2 + 451^2 .

It is a cyclic number.

It is not a de Polignac number, because 4068557 - 2⁴ = 4068541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4068587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54944 + ... + 55017.

It is an arithmetic number, because the mean of its divisors is an integer number (1044639).

Almost surely, 2^4068557 is an apocalyptic number.

It is an amenable number.

4068557 is a deficient number, since it is larger than the sum of its proper divisors (109999).

4068557 is a wasteful number, since it uses less digits than its factorization.

4068557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109998.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 4068557 is about 2017.0664342059. The cubic root of 4068557 is about 159.6418682543.

The spelling of 4068557 in words is "four million, sixty-eight thousand, five hundred fifty-seven".