670820883 has 4 divisors (see below), whose sum is σ = 894427848. Its totient is φ = 447213920.

The previous prime is 670820881. The next prime is 670820929. The reversal of 670820883 is 388028076.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 670820883 - 2¹ = 670820881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (670820881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111803478 + ... + 111803483.

It is an arithmetic number, because the mean of its divisors is an integer number (223606962).

Almost surely, 2^670820883 is an apocalyptic number.

670820883 is a deficient number, since it is larger than the sum of its proper divisors (223606965).

670820883 is a wasteful number, since it uses less digits than its factorization.

670820883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223606964.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 670820883 is about 25900.2100956730. The cubic root of 670820883 is about 875.3912298908.

The spelling of 670820883 in words is "six hundred seventy million, eight hundred twenty thousand, eight hundred eighty-three".