6981830 has 8 divisors (see below), whose sum is σ = 12567312. Its totient is φ = 2792728.

The previous prime is 6981829. The next prime is 6981841. The reversal of 6981830 is 381896.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349082 + ... + 349101.

It is an arithmetic number, because the mean of its divisors is an integer number (1570914).

Almost surely, 2^6981830 is an apocalyptic number.

6981830 is a deficient number, since it is larger than the sum of its proper divisors (5585482).

6981830 is a wasteful number, since it uses less digits than its factorization.

6981830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698190.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 6981830 is about 2642.3152726350. The cubic root of 6981830 is about 191.1274607680.

The spelling of 6981830 in words is "six million, nine hundred eighty-one thousand, eight hundred thirty".