6889930 has 16 divisors (see below), whose sum is σ = 13131720. Its totient is φ = 2593792.

The previous prime is 6889921. The next prime is 6889931. The reversal of 6889930 is 399886.

6889930 = T₉₃ + T₉₄ + ... + T₃₄₇.

It can be written as a sum of positive squares in 4 ways, for example, as 6880129 + 9801 = 2623^2 + 99^2 .

It is a super-2 number, since 2×6889930² = 94942270809800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6889931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20095 + ... + 20434.

Almost surely, 2^6889930 is an apocalyptic number.

6889930 is a deficient number, since it is larger than the sum of its proper divisors (6241790).

6889930 is a wasteful number, since it uses less digits than its factorization.

6889930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40553.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 6889930 is about 2624.8676157094. The cubic root of 6889930 is about 190.2851673515.

It can be divided in two parts, 68 and 89930, that added together give a palindrome (89998).

The spelling of 6889930 in words is "six million, eight hundred eighty-nine thousand, nine hundred thirty".