206591034 has 32 divisors (see below), whose sum is σ = 445725504. Its totient is φ = 63457920.

The previous prime is 206591029. The next prime is 206591039. The reversal of 206591034 is 430195602.

It is an interprime number because it is at equal distance from previous prime (206591029) and next prime (206591039).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 206590992 and 206591010.

It is not an unprimeable number, because it can be changed into a prime (206591039) 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 15 ways as a sum of consecutive naturals, for example, 51982 + ... + 55814.

It is an arithmetic number, because the mean of its divisors is an integer number (13928922).

Almost surely, 2^206591034 is an apocalyptic number.

206591034 is an abundant number, since it is smaller than the sum of its proper divisors (239134470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206591034 is a wasteful number, since it uses less digits than its factorization.

206591034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4542.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 206591034 is about 14373.2749921512. The cubic root of 206591034 is about 591.1583429412.

The spelling of 206591034 in words is "two hundred six million, five hundred ninety-one thousand, thirty-four".