206705069 has 8 divisors (see below), whose sum is σ = 216846720. Its totient is φ = 196764400.

The previous prime is 206705053. The next prime is 206705087. The reversal of 206705069 is 960507602.

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

It is a cyclic number.

It is not a de Polignac number, because 206705069 - 2⁴ = 206705053 is a prime.

It is a super-2 number, since 2×206705069² = 85453971100589522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206705029) 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, 48137 + ... + 52254.

It is an arithmetic number, because the mean of its divisors is an integer number (27105840).

Almost surely, 2^206705069 is an apocalyptic number.

206705069 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

206705069 is a deficient number, since it is larger than the sum of its proper divisors (10141651).

206705069 is a wasteful number, since it uses less digits than its factorization.

206705069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100491.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 206705069 is about 14377.2413556982. The cubic root of 206705069 is about 591.2670929686.

The spelling of 206705069 in words is "two hundred six million, seven hundred five thousand, sixty-nine".