206989534 has 16 divisors (see below), whose sum is σ = 327369600. Its totient is φ = 97884504.

The previous prime is 206989499. The next prime is 206989567. The reversal of 206989534 is 435989602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20377 + ... + 28795.

It is an arithmetic number, because the mean of its divisors is an integer number (20460600).

Almost surely, 2^206989534 is an apocalyptic number.

206989534 is a deficient number, since it is larger than the sum of its proper divisors (120380066).

206989534 is a wasteful number, since it uses less digits than its factorization.

206989534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9087.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 206989534 is about 14387.1308466977. The cubic root of 206989534 is about 591.5382001673.

The spelling of 206989534 in words is "two hundred six million, nine hundred eighty-nine thousand, five hundred thirty-four".