6830388 has 18 divisors (see below), whose sum is σ = 17265794. Its totient is φ = 2276784.

The previous prime is 6830377. The next prime is 6830407. The reversal of 6830388 is 8830386.

It can be written as a sum of positive squares in only one way, i.e., 5702544 + 1127844 = 2388^2 + 1062^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 189733 = 6830388 / (6 + 8 + 3 + 0 + 3 + 8 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 94831 + ... + 94902.

Almost surely, 2^6830388 is an apocalyptic number.

It is an amenable number.

6830388 is an abundant number, since it is smaller than the sum of its proper divisors (10435406).

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

6830388 is a wasteful number, since it uses less digits than its factorization.

6830388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189743 (or 189738 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 6830388 is about 2613.5011000572. The cubic root of 6830388 is about 189.7354397322.

The spelling of 6830388 in words is "six million, eight hundred thirty thousand, three hundred eighty-eight".