4591057 has 4 divisors (see below), whose sum is σ = 4703076. Its totient is φ = 4479040.

The previous prime is 4591051. The next prime is 4591061. The reversal of 4591057 is 7501954.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7501954 = 2 ⋅3750977.

It can be written as a sum of positive squares in 2 ways, for example, as 92416 + 4498641 = 304^2 + 2121^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4591057 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4591051) 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, 55948 + ... + 56029.

It is an arithmetic number, because the mean of its divisors is an integer number (1175769).

Almost surely, 2^4591057 is an apocalyptic number.

It is an amenable number.

4591057 is a deficient number, since it is larger than the sum of its proper divisors (112019).

4591057 is a wasteful number, since it uses less digits than its factorization.

4591057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112018.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 4591057 is about 2142.6751970376. The cubic root of 4591057 is about 166.2025036272.

The spelling of 4591057 in words is "four million, five hundred ninety-one thousand, fifty-seven".