6670428 has 24 divisors (see below), whose sum is σ = 15896832. Its totient is φ = 2175984.

The previous prime is 6670427. The next prime is 6670429. The reversal of 6670428 is 8240766.

It is an interprime number because it is at equal distance from previous prime (6670427) and next prime (6670429).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6670423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5350 + ... + 6477.

It is an arithmetic number, because the mean of its divisors is an integer number (662368).

Almost surely, 2^6670428 is an apocalyptic number.

It is an amenable number.

6670428 is an abundant number, since it is smaller than the sum of its proper divisors (9226404).

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

6670428 is a wasteful number, since it uses less digits than its factorization.

6670428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11881 (or 11879 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 6670428 is about 2582.7171738307. The cubic root of 6670428 is about 188.2425946234.

The spelling of 6670428 in words is "six million, six hundred seventy thousand, four hundred twenty-eight".