6923889 has 12 divisors (see below), whose sum is σ = 11430016. Its totient is φ = 3956472.

The previous prime is 6923887. The next prime is 6923893. The reversal of 6923889 is 9883296.

It is not a de Polignac number, because 6923889 - 2¹ = 6923887 is a prime.

It is a super-3 number, since 3×6923889³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

6923889 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6923887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54889 + ... + 55014.

Almost surely, 2^6923889 is an apocalyptic number.

It is an amenable number.

6923889 is a deficient number, since it is larger than the sum of its proper divisors (4506127).

6923889 is a wasteful number, since it uses less digits than its factorization.

6923889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109916 (or 109913 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 6923889 is about 2631.3283717545. The cubic root of 6923889 is about 190.5972801761.

The spelling of 6923889 in words is "six million, nine hundred twenty-three thousand, eight hundred eighty-nine".