6198669 has 6 divisors (see below), whose sum is σ = 8953646. Its totient is φ = 4132440.

The previous prime is 6198653. The next prime is 6198671. The reversal of 6198669 is 9668916.

It can be written as a sum of positive squares in only one way, i.e., 3515625 + 2683044 = 1875^2 + 1638^2 .

It is not a de Polignac number, because 6198669 - 2⁴ = 6198653 is a prime.

It is a super-2 number, since 2×6198669² = 76846994743122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6198679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 344362 + ... + 344379.

Almost surely, 2^6198669 is an apocalyptic number.

It is an amenable number.

6198669 is a deficient number, since it is larger than the sum of its proper divisors (2754977).

6198669 is a wasteful number, since it uses less digits than its factorization.

6198669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688747 (or 688744 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 6198669 is about 2489.7126340202. The cubic root of 6198669 is about 183.6959079986.

The spelling of 6198669 in words is "six million, one hundred ninety-eight thousand, six hundred sixty-nine".