670990473 has 20 divisors (see below), whose sum is σ = 1011724560. Its totient is φ = 443140632.

The previous prime is 670990457. The next prime is 670990483. The reversal of 670990473 is 374099076.

670990473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 670990473 - 2⁴ = 670990457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (670990483) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 30043 + ... + 47376.

It is an arithmetic number, because the mean of its divisors is an integer number (50586228).

Almost surely, 2^670990473 is an apocalyptic number.

It is an amenable number.

670990473 is a deficient number, since it is larger than the sum of its proper divisors (340734087).

670990473 is a wasteful number, since it uses less digits than its factorization.

670990473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77538 (or 77529 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 670990473 is about 25903.4838004466. The cubic root of 670990473 is about 875.4649927952.

The spelling of 670990473 in words is "six hundred seventy million, nine hundred ninety thousand, four hundred seventy-three".