206497085 has 16 divisors (see below), whose sum is σ = 254534400. Its totient is φ = 160746816.

The previous prime is 206497021. The next prime is 206497091. The reversal of 206497085 is 580794602.

It is a cyclic number.

It is not a de Polignac number, because 206497085 - 2⁶ = 206497021 is a prime.

It is a super-2 number, since 2×206497085² = 85282092226994450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39611 + ... + 44519.

It is an arithmetic number, because the mean of its divisors is an integer number (15908400).

Almost surely, 2^206497085 is an apocalyptic number.

It is an amenable number.

206497085 is a deficient number, since it is larger than the sum of its proper divisors (48037315).

206497085 is a wasteful number, since it uses less digits than its factorization.

206497085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 206497085 is about 14370.0064370201. The cubic root of 206497085 is about 591.0687179542.

The spelling of 206497085 in words is "two hundred six million, four hundred ninety-seven thousand, eighty-five".