6619797 has 6 divisors (see below), whose sum is σ = 9561942. Its totient is φ = 4413192.

The previous prime is 6619777. The next prime is 6619799. The reversal of 6619797 is 7979166.

6619797 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6380676 + 239121 = 2526^2 + 489^2 .

It is not a de Polignac number, because 6619797 - 2¹⁴ = 6603413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6619799) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 367758 + ... + 367775.

It is an arithmetic number, because the mean of its divisors is an integer number (1593657).

Almost surely, 2^6619797 is an apocalyptic number.

It is an amenable number.

6619797 is a deficient number, since it is larger than the sum of its proper divisors (2942145).

6619797 is a wasteful number, since it uses less digits than its factorization.

6619797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735539 (or 735536 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 6619797 is about 2572.8966166560. The cubic root of 6619797 is about 187.7651076523.

The spelling of 6619797 in words is "six million, six hundred nineteen thousand, seven hundred ninety-seven".