670047828 has 12 divisors (see below), whose sum is σ = 1563444960. Its totient is φ = 223349272.

The previous prime is 670047827. The next prime is 670047869. The reversal of 670047828 is 828740076.

670047828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 670047828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670047823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27918648 + ... + 27918671.

It is an arithmetic number, because the mean of its divisors is an integer number (130287080).

Almost surely, 2^670047828 is an apocalyptic number.

It is an amenable number.

670047828 is an abundant number, since it is smaller than the sum of its proper divisors (893397132).

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

670047828 is a wasteful number, since it uses less digits than its factorization.

670047828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55837326 (or 55837324 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 670047828 is about 25885.2820730237. The cubic root of 670047828 is about 875.0548332440.

The spelling of 670047828 in words is "six hundred seventy million, forty-seven thousand, eight hundred twenty-eight".