5697649 has 4 divisors (see below), whose sum is σ = 5705280. Its totient is φ = 5690020.

The previous prime is 5697641. The next prime is 5697661. The reversal of 5697649 is 9467965.

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.

It is a cyclic number.

It is not a de Polignac number, because 5697649 - 2³ = 5697641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5697599 and 5697608.

It is not an unprimeable number, because it can be changed into a prime (5697641) 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, 2557 + ... + 4234.

It is an arithmetic number, because the mean of its divisors is an integer number (1426320).

Almost surely, 2^5697649 is an apocalyptic number.

It is an amenable number.

5697649 is a deficient number, since it is larger than the sum of its proper divisors (7631).

5697649 is an equidigital number, since it uses as much as digits as its factorization.

5697649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7630.

The product of its digits is 408240, while the sum is 46.

The square root of 5697649 is about 2386.9748637135. The cubic root of 5697649 is about 178.6070361602.

The spelling of 5697649 in words is "five million, six hundred ninety-seven thousand, six hundred forty-nine".