6670406 has 16 divisors (see below), whose sum is σ = 10897200. Its totient is φ = 3050208.

The previous prime is 6670403. The next prime is 6670423. The reversal of 6670406 is 6040766.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6670403) 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, 1925 + ... + 4128.

It is an arithmetic number, because the mean of its divisors is an integer number (681075).

Almost surely, 2^6670406 is an apocalyptic number.

6670406 is a deficient number, since it is larger than the sum of its proper divisors (4226794).

6670406 is a wasteful number, since it uses less digits than its factorization.

6670406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6103.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 6670406 is about 2582.7129147468. The cubic root of 6670406 is about 188.2423876731.

The spelling of 6670406 in words is "six million, six hundred seventy thousand, four hundred six".