6889770 has 48 divisors (see below), whose sum is σ = 18406440. Its totient is φ = 1786752.

The previous prime is 6889759. The next prime is 6889789. The reversal of 6889770 is 779886.

It can be written as a sum of positive squares in 4 ways, for example, as 5716881 + 1172889 = 2391^2 + 1083^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2296 + ... + 4364.

Almost surely, 2^6889770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6889770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9203220).

6889770 is an abundant number, since it is smaller than the sum of its proper divisors (11516670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6889770 is a wasteful number, since it uses less digits than its factorization.

6889770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119 (or 2116 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 6889770 is about 2624.8371378049. The cubic root of 6889770 is about 190.2836943873.

The spelling of 6889770 in words is "six million, eight hundred eighty-nine thousand, seven hundred seventy".