6618969 has 24 divisors (see below), whose sum is σ = 11409120. Its totient is φ = 3781512.

The previous prime is 6618959. The next prime is 6618971. The reversal of 6618969 is 9698166.

It is not a de Polignac number, because 6618969 - 2⁸ = 6618713 is a prime.

It is a super-2 number, since 2×6618969² = 87621501245922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6618919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1179 + ... + 3824.

It is an arithmetic number, because the mean of its divisors is an integer number (475380).

Almost surely, 2^6618969 is an apocalyptic number.

It is an amenable number.

6618969 is a deficient number, since it is larger than the sum of its proper divisors (4790151).

6618969 is a wasteful number, since it uses less digits than its factorization.

6618969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5026 (or 5013 counting only the distinct ones).

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

The square root of 6618969 is about 2572.7357034876. The cubic root of 6618969 is about 187.7572788125.

The spelling of 6618969 in words is "six million, six hundred eighteen thousand, nine hundred sixty-nine".