206729493 has 8 divisors (see below), whose sum is σ = 279521856. Its totient is φ = 135878400.

The previous prime is 206729489. The next prime is 206729507. The reversal of 206729493 is 394927602.

It is a happy number.

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

It is not a de Polignac number, because 206729493 - 2² = 206729489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206724493) 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, 485068 + ... + 485493.

It is an arithmetic number, because the mean of its divisors is an integer number (34940232).

Almost surely, 2^206729493 is an apocalyptic number.

It is an amenable number.

206729493 is a deficient number, since it is larger than the sum of its proper divisors (72792363).

206729493 is an equidigital number, since it uses as much as digits as its factorization.

206729493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970635.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 206729493 is about 14378.0907286051. The cubic root of 206729493 is about 591.2903798330.

The spelling of 206729493 in words is "two hundred six million, seven hundred twenty-nine thousand, four hundred ninety-three".