6930406 has 16 divisors (see below), whose sum is σ = 12397824. Its totient is φ = 2840904.

The previous prime is 6930389. The next prime is 6930409. The reversal of 6930406 is 6040396.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6930409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10440 + ... + 11083.

It is an arithmetic number, because the mean of its divisors is an integer number (774864).

Almost surely, 2^6930406 is an apocalyptic number.

6930406 is a deficient number, since it is larger than the sum of its proper divisors (5467418).

6930406 is a wasteful number, since it uses less digits than its factorization.

6930406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21555.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 6930406 is about 2632.5664284116. The cubic root of 6930406 is about 190.6570603068.

The spelling of 6930406 in words is "six million, nine hundred thirty thousand, four hundred six".