206804970 has 48 divisors (see below), whose sum is σ = 543259080. Its totient is φ = 54577152.

The previous prime is 206804959. The next prime is 206804977. The reversal of 206804970 is 79408602.

It can be written as a sum of positive squares in 4 ways, for example, as 99620361 + 107184609 = 9981^2 + 10353^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (206804977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3115 + ... + 20574.

Almost surely, 2^206804970 is an apocalyptic number.

206804970 is an abundant number, since it is smaller than the sum of its proper divisors (336454110).

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

206804970 is a wasteful number, since it uses less digits than its factorization.

206804970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23799 (or 23796 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 206804970 is about 14380.7152116993. The cubic root of 206804970 is about 591.3623311757.

The spelling of 206804970 in words is "two hundred six million, eight hundred four thousand, nine hundred seventy".