5657647 has 4 divisors (see below), whose sum is σ = 5672296. Its totient is φ = 5643000.

The previous prime is 5657629. The next prime is 5657657. The reversal of 5657647 is 7467565.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5657647 - 2¹¹ = 5655599 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 (5657627) 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, 6729 + ... + 7522.

It is an arithmetic number, because the mean of its divisors is an integer number (1418074).

Almost surely, 2^5657647 is an apocalyptic number.

5657647 is a deficient number, since it is larger than the sum of its proper divisors (14649).

5657647 is a wasteful number, since it uses less digits than its factorization.

5657647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14648.

The product of its digits is 176400, while the sum is 40.

The square root of 5657647 is about 2378.5808794321. The cubic root of 5657647 is about 178.1880665981.

The spelling of 5657647 in words is "five million, six hundred fifty-seven thousand, six hundred forty-seven".