6653969 has 16 divisors (see below), whose sum is σ = 8156928. Its totient is φ = 5303232.

The previous prime is 6653957. The next prime is 6653989. The reversal of 6653969 is 9693566.

It is a cyclic number.

It is not a de Polignac number, because 6653969 - 2¹⁶ = 6588433 is a prime.

It is a super-2 number, since 2×6653969² = 88550606905922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6653939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5399 + ... + 6515.

It is an arithmetic number, because the mean of its divisors is an integer number (509808).

Almost surely, 2^6653969 is an apocalyptic number.

It is an amenable number.

6653969 is a deficient number, since it is larger than the sum of its proper divisors (1502959).

6653969 is a wasteful number, since it uses less digits than its factorization.

6653969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184.

The product of its digits is 262440, while the sum is 44.

The square root of 6653969 is about 2579.5288329460. The cubic root of 6653969 is about 188.0876402157.

The spelling of 6653969 in words is "six million, six hundred fifty-three thousand, nine hundred sixty-nine".