206992641 has 8 divisors (see below), whose sum is σ = 282721824. Its totient is φ = 134629280.

The previous prime is 206992637. The next prime is 206992651. The reversal of 206992641 is 146299602.

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

It is a cyclic number.

It is not a de Polignac number, because 206992641 - 2² = 206992637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 206992641.

It is not an unprimeable number, because it can be changed into a prime (206992651) 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, 841311 + ... + 841556.

It is an arithmetic number, because the mean of its divisors is an integer number (35340228).

Almost surely, 2^206992641 is an apocalyptic number.

It is an amenable number.

206992641 is a deficient number, since it is larger than the sum of its proper divisors (75729183).

206992641 is a wasteful number, since it uses less digits than its factorization.

206992641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682911.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 206992641 is about 14387.2388247363. The cubic root of 206992641 is about 591.5411598983.

The spelling of 206992641 in words is "two hundred six million, nine hundred ninety-two thousand, six hundred forty-one".