206375489 has 4 divisors (see below), whose sum is σ = 206423040. Its totient is φ = 206327940.

The previous prime is 206375471. The next prime is 206375497. The reversal of 206375489 is 984573602.

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 a cyclic number.

It is not a de Polignac number, because 206375489 - 2¹² = 206371393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206375419) 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, 16529 + ... + 26190.

It is an arithmetic number, because the mean of its divisors is an integer number (51605760).

Almost surely, 2^206375489 is an apocalyptic number.

It is an amenable number.

206375489 is a deficient number, since it is larger than the sum of its proper divisors (47551).

206375489 is an equidigital number, since it uses as much as digits as its factorization.

206375489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47550.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 206375489 is about 14365.7749181866. The cubic root of 206375489 is about 590.9526780536.

The spelling of 206375489 in words is "two hundred six million, three hundred seventy-five thousand, four hundred eighty-nine".