206705734 has 8 divisors (see below), whose sum is σ = 310132368. Its totient is φ = 103328280.

The previous prime is 206705713. The next prime is 206705749. The reversal of 206705734 is 437507602.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 206705734.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1159 + ... + 20365.

It is an arithmetic number, because the mean of its divisors is an integer number (38766546).

Almost surely, 2^206705734 is an apocalyptic number.

206705734 is a deficient number, since it is larger than the sum of its proper divisors (103426634).

206705734 is a wasteful number, since it uses less digits than its factorization.

206705734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24590.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 206705734 is about 14377.2644825085. The cubic root of 206705734 is about 591.2677270318.

The spelling of 206705734 in words is "two hundred six million, seven hundred five thousand, seven hundred thirty-four".