6813930 has 16 divisors (see below), whose sum is σ = 16353504. Its totient is φ = 1817040.

The previous prime is 6813901. The next prime is 6813943. The reversal of 6813930 is 393186.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 227131 = 6813930 / (6 + 8 + 1 + 3 + 9 + 3 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113536 + ... + 113595.

It is an arithmetic number, because the mean of its divisors is an integer number (1022094).

Almost surely, 2^6813930 is an apocalyptic number.

6813930 is an abundant number, since it is smaller than the sum of its proper divisors (9539574).

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

6813930 is a wasteful number, since it uses less digits than its factorization.

6813930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227141.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 6813930 is about 2610.3505511712. The cubic root of 6813930 is about 189.5829263231.

The spelling of 6813930 in words is "six million, eight hundred thirteen thousand, nine hundred thirty".