206648079 has 16 divisors (see below), whose sum is σ = 301937664. Its totient is φ = 124675200.

The previous prime is 206648059. The next prime is 206648089. The reversal of 206648079 is 970846602.

It is not a de Polignac number, because 206648079 - 2¹⁷ = 206517007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 206648079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206648059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6682 + ... + 21399.

It is an arithmetic number, because the mean of its divisors is an integer number (18871104).

Almost surely, 2^206648079 is an apocalyptic number.

206648079 is a deficient number, since it is larger than the sum of its proper divisors (95289585).

206648079 is a wasteful number, since it uses less digits than its factorization.

206648079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28318.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 206648079 is about 14375.2592672271. The cubic root of 206648079 is about 591.2127491814.

The spelling of 206648079 in words is "two hundred six million, six hundred forty-eight thousand, seventy-nine".