206046397 has 8 divisors (see below), whose sum is σ = 215179776. Its totient is φ = 196927632.

The previous prime is 206046389. The next prime is 206046403. The reversal of 206046397 is 793640602.

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 206046397 - 2³ = 206046389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206041397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33183 + ... + 38899.

It is an arithmetic number, because the mean of its divisors is an integer number (26897472).

Almost surely, 2^206046397 is an apocalyptic number.

It is an amenable number.

206046397 is a deficient number, since it is larger than the sum of its proper divisors (9133379).

206046397 is a wasteful number, since it uses less digits than its factorization.

206046397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7307.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 206046397 is about 14354.3163194908. The cubic root of 206046397 is about 590.6383945041.

Adding to 206046397 its reverse (793640602), we get a palindrome (999686999).

The spelling of 206046397 in words is "two hundred six million, forty-six thousand, three hundred ninety-seven".