667083228 has 48 divisors (see below), whose sum is σ = 1812464640. Its totient is φ = 186997824.

The previous prime is 667083199. The next prime is 667083253. The reversal of 667083228 is 822380766.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 667083228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70468 + ... + 79371.

It is an arithmetic number, because the mean of its divisors is an integer number (37759680).

Almost surely, 2^667083228 is an apocalyptic number.

It is an amenable number.

667083228 is an abundant number, since it is smaller than the sum of its proper divisors (1145381412).

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

667083228 is a wasteful number, since it uses less digits than its factorization.

667083228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149906 (or 149904 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 667083228 is about 25827.9543905436. The cubic root of 667083228 is about 873.7623767744.

It can be divided in two parts, 6670 and 83228, that added together give a palindrome (89898).

The spelling of 667083228 in words is "six hundred sixty-seven million, eighty-three thousand, two hundred twenty-eight".