206875000 has 64 divisors (see below), whose sum is σ = 486326880. Its totient is φ = 82500000.

The previous prime is 206874979. The next prime is 206875001. The reversal of 206875000 is 578602.

It is a self number, because there is not a number n which added to its sum of digits gives 206875000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206875001) 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 15 ways as a sum of consecutive naturals, for example, 624835 + ... + 625165.

Almost surely, 2^206875000 is an apocalyptic number.

206875000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206875000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243163440).

206875000 is an abundant number, since it is smaller than the sum of its proper divisors (279451880).

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

206875000 is an frugal number, since it uses more digits than its factorization.

206875000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 206875000 is about 14383.1498636425. The cubic root of 206875000 is about 591.4290743015.

The spelling of 206875000 in words is "two hundred six million, eight hundred seventy-five thousand".