206241987 has 8 divisors (see below), whose sum is σ = 314273536. Its totient is φ = 117852552.

The previous prime is 206241983. The next prime is 206242019. The reversal of 206241987 is 789142602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206241987 - 2² = 206241983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206241983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4910503 + ... + 4910544.

It is an arithmetic number, because the mean of its divisors is an integer number (39284192).

Almost surely, 2^206241987 is an apocalyptic number.

206241987 is a deficient number, since it is larger than the sum of its proper divisors (108031549).

206241987 is an equidigital number, since it uses as much as digits as its factorization.

206241987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9821057.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 206241987 is about 14361.1276367840. The cubic root of 206241987 is about 590.8252236699.

The spelling of 206241987 in words is "two hundred six million, two hundred forty-one thousand, nine hundred eighty-seven".