7057657 has 4 divisors (see below), whose sum is σ = 7088976. Its totient is φ = 7026340.

The previous prime is 7057651. The next prime is 7057667. The reversal of 7057657 is 7567507.

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 an emirpimes, since its reverse is a distinct semiprime: 7567507 = 1571 ⋅4817.

It is a cyclic number.

It is not a de Polignac number, because 7057657 - 2³ = 7057649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7057651) 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, 15319 + ... + 15772.

It is an arithmetic number, because the mean of its divisors is an integer number (1772244).

Almost surely, 2^7057657 is an apocalyptic number.

It is an amenable number.

7057657 is a deficient number, since it is larger than the sum of its proper divisors (31319).

7057657 is a wasteful number, since it uses less digits than its factorization.

7057657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31318.

The product of its (nonzero) digits is 51450, while the sum is 37.

The square root of 7057657 is about 2656.6251146897. The cubic root of 7057657 is about 191.8168917612.

The spelling of 7057657 in words is "seven million, fifty-seven thousand, six hundred fifty-seven".