4457557 has 4 divisors (see below), whose sum is σ = 4800460. Its totient is φ = 4114656.

The previous prime is 4457549. The next prime is 4457597. The reversal of 4457557 is 7557544.

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 271441 + 4186116 = 521^2 + 2046^2 .

It is not a de Polignac number, because 4457557 - 2³ = 4457549 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 (4457507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171432 + ... + 171457.

It is an arithmetic number, because the mean of its divisors is an integer number (1200115).

Almost surely, 2^4457557 is an apocalyptic number.

It is an amenable number.

4457557 is a deficient number, since it is larger than the sum of its proper divisors (342903).

4457557 is a wasteful number, since it uses less digits than its factorization.

4457557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342902.

The product of its digits is 98000, while the sum is 37.

The square root of 4457557 is about 2111.2927319536. The cubic root of 4457557 is about 164.5756712486.

The spelling of 4457557 in words is "four million, four hundred fifty-seven thousand, five hundred fifty-seven".