6457057 has 4 divisors (see below), whose sum is σ = 6462720. Its totient is φ = 6451396.

The previous prime is 6457027. The next prime is 6457079. The reversal of 6457057 is 7507546.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6457057 - 2⁷ = 6456929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6457007) 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, 457 + ... + 3622.

It is an arithmetic number, because the mean of its divisors is an integer number (1615680).

Almost surely, 2^6457057 is an apocalyptic number.

It is an amenable number.

6457057 is a deficient number, since it is larger than the sum of its proper divisors (5663).

6457057 is a wasteful number, since it uses less digits than its factorization.

6457057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5662.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 6457057 is about 2541.0739855423. The cubic root of 6457057 is about 186.2136616643.

It can be divided in two parts, 64 and 57057, that added together give a square (57121 = 239²).

The spelling of 6457057 in words is "six million, four hundred fifty-seven thousand, fifty-seven".