206532889 has 4 divisors (see below), whose sum is σ = 206694160. Its totient is φ = 206371620.

The previous prime is 206532877. The next prime is 206532901. The reversal of 206532889 is 988235602.

206532889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (206532877) and next prime (206532901).

It is a cyclic number.

It is not a de Polignac number, because 206532889 - 2⁹ = 206532377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206532829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78699 + ... + 81280.

It is an arithmetic number, because the mean of its divisors is an integer number (51673540).

Almost surely, 2^206532889 is an apocalyptic number.

It is an amenable number.

206532889 is a deficient number, since it is larger than the sum of its proper divisors (161271).

206532889 is a wasteful number, since it uses less digits than its factorization.

206532889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161270.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 206532889 is about 14371.2521723057. The cubic root of 206532889 is about 591.1028772764.

The spelling of 206532889 in words is "two hundred six million, five hundred thirty-two thousand, eight hundred eighty-nine".