206671473 has 8 divisors (see below), whose sum is σ = 306180000. Its totient is φ = 137780964.

The previous prime is 206671471. The next prime is 206671481. The reversal of 206671473 is 374176602.

It is not a de Polignac number, because 206671473 - 2¹ = 206671471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206671471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3827223 + ... + 3827276.

It is an arithmetic number, because the mean of its divisors is an integer number (38272500).

Almost surely, 2^206671473 is an apocalyptic number.

It is an amenable number.

206671473 is a deficient number, since it is larger than the sum of its proper divisors (99508527).

206671473 is an equidigital number, since it uses as much as digits as its factorization.

206671473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7654508 (or 7654502 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 206671473 is about 14376.0729338718. The cubic root of 206671473 is about 591.2350581381.

The spelling of 206671473 in words is "two hundred six million, six hundred seventy-one thousand, four hundred seventy-three".