206061604 has 12 divisors (see below), whose sum is σ = 412123264. Its totient is φ = 88312104.

The previous prime is 206061601. The next prime is 206061637. The reversal of 206061604 is 406160602.

It is a happy number.

206061604 is an admirable number.

It is a super-2 number, since 2×206061604² = 84922769286105632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206061601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3679644 + ... + 3679699.

Almost surely, 2^206061604 is an apocalyptic number.

It is an amenable number.

206061604 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

206061604 is a wasteful number, since it uses less digits than its factorization.

206061604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7359354 (or 7359352 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 206061604 is about 14354.8460110166. The cubic root of 206061604 is about 590.6529245926.

The spelling of 206061604 in words is "two hundred six million, sixty-one thousand, six hundred four".