6843690 has 160 divisors (see below), whose sum is σ = 22581504. Its totient is φ = 1451520.

The previous prime is 6843689. The next prime is 6843703. The reversal of 6843690 is 963486.

Added to its reverse (963486) it gives a triangular number (7807176 = T₃₉₅₁).

It is a super-2 number, since 2×6843690² = 93672185632200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 96355 + ... + 96425.

Almost surely, 2^6843690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6843690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11290752).

6843690 is an abundant number, since it is smaller than the sum of its proper divisors (15737814).

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

6843690 is a wasteful number, since it uses less digits than its factorization.

6843690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 6843690 is about 2616.0447243883. The cubic root of 6843690 is about 189.8585281134.

Adding to 6843690 its reverse (963486), we get a triangular number (7807176 = T₃₉₅₁).

The spelling of 6843690 in words is "six million, eight hundred forty-three thousand, six hundred ninety".