206886513 has 8 divisors (see below), whose sum is σ = 276296800. Its totient is φ = 137700288.

The previous prime is 206886487. The next prime is 206886517. The reversal of 206886513 is 315688602.

It is a happy number.

206886513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 206886513 - 2¹⁰ = 206885489 is a prime.

It is a super-2 number, since 2×206886513² = 85604058522598338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206886517) 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, 53848 + ... + 57561.

It is an arithmetic number, because the mean of its divisors is an integer number (34537100).

Almost surely, 2^206886513 is an apocalyptic number.

It is an amenable number.

206886513 is a deficient number, since it is larger than the sum of its proper divisors (69410287).

206886513 is a wasteful number, since it uses less digits than its factorization.

206886513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112031.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 206886513 is about 14383.5500833417. The cubic root of 206886513 is about 591.4400454944.

The spelling of 206886513 in words is "two hundred six million, eight hundred eighty-six thousand, five hundred thirteen".