206994933 has 12 divisors (see below), whose sum is σ = 310066848. Its totient is φ = 137996460.

The previous prime is 206994929. The next prime is 206994961. The reversal of 206994933 is 339499602.

It is not a de Polignac number, because 206994933 - 2² = 206994929 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206994233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 425673 + ... + 426158.

It is an arithmetic number, because the mean of its divisors is an integer number (25838904).

Almost surely, 2^206994933 is an apocalyptic number.

It is an amenable number.

206994933 is a deficient number, since it is larger than the sum of its proper divisors (103071915).

206994933 is an frugal number, since it uses more digits than its factorization.

206994933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851846 (or 851834 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The square root of 206994933 is about 14387.3184784379. The cubic root of 206994933 is about 591.5433432405.

The spelling of 206994933 in words is "two hundred six million, nine hundred ninety-four thousand, nine hundred thirty-three".