6551697 has 4 divisors (see below), whose sum is σ = 8735600. Its totient is φ = 4367796.

The previous prime is 6551693. The next prime is 6551719. The reversal of 6551697 is 7961556.

6551697 is digitally balanced in base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 6551697 - 2² = 6551693 is a prime.

It is a D-number.

It is a Duffinian number.

6551697 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6551693) 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, 1091947 + ... + 1091952.

It is an arithmetic number, because the mean of its divisors is an integer number (2183900).

Almost surely, 2^6551697 is an apocalyptic number.

It is an amenable number.

6551697 is a deficient number, since it is larger than the sum of its proper divisors (2183903).

6551697 is a wasteful number, since it uses less digits than its factorization.

6551697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183902.

The product of its digits is 56700, while the sum is 39.

The square root of 6551697 is about 2559.6282933270. The cubic root of 6551697 is about 187.1190201921.

The spelling of 6551697 in words is "six million, five hundred fifty-one thousand, six hundred ninety-seven".