206326901 has 6 divisors (see below), whose sum is σ = 226789206. Its totient is φ = 187569800.

The previous prime is 206326877. The next prime is 206326957. The reversal of 206326901 is 109623602.

It can be written as a sum of positive squares in only one way, i.e., 177156100 + 29170801 = 13310^2 + 5401^2 .

It is not a de Polignac number, because 206326901 - 2²² = 202132597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206320901) 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 5 ways as a sum of consecutive naturals, for example, 852470 + ... + 852711.

It is an arithmetic number, because the mean of its divisors is an integer number (37798201).

Almost surely, 2^206326901 is an apocalyptic number.

It is an amenable number.

206326901 is a deficient number, since it is larger than the sum of its proper divisors (20462305).

206326901 is a wasteful number, since it uses less digits than its factorization.

206326901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705203 (or 1705192 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 206326901 is about 14364.0837159911. The cubic root of 206326901 is about 590.9062974449.

The spelling of 206326901 in words is "two hundred six million, three hundred twenty-six thousand, nine hundred one".