206931093 has 16 divisors (see below), whose sum is σ = 286963776. Its totient is φ = 132531840.

The previous prime is 206931091. The next prime is 206931097. The reversal of 206931093 is 390139602.

It is not a de Polignac number, because 206931093 - 2¹ = 206931091 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206931091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5280 + ... + 21017.

It is an arithmetic number, because the mean of its divisors is an integer number (17935236).

Almost surely, 2^206931093 is an apocalyptic number.

It is an amenable number.

206931093 is a deficient number, since it is larger than the sum of its proper divisors (80032683).

206931093 is a wasteful number, since it uses less digits than its factorization.

206931093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26404.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 206931093 is about 14385.0996868287. The cubic root of 206931093 is about 591.4825237002.

The spelling of 206931093 in words is "two hundred six million, nine hundred thirty-one thousand, ninety-three".