206774941 has 4 divisors (see below), whose sum is σ = 206859484. Its totient is φ = 206690400.

The previous prime is 206774921. The next prime is 206774951. The reversal of 206774941 is 149477602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 149477602 = 2 ⋅74738801.

It can be written as a sum of positive squares in 2 ways, for example, as 95472441 + 111302500 = 9771^2 + 10550^2 .

It is a cyclic number.

It is not a de Polignac number, because 206774941 - 2⁹ = 206774429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206774894 and 206774903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206774921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38490 + ... + 43531.

It is an arithmetic number, because the mean of its divisors is an integer number (51714871).

Almost surely, 2^206774941 is an apocalyptic number.

It is an amenable number.

206774941 is a deficient number, since it is larger than the sum of its proper divisors (84543).

206774941 is an equidigital number, since it uses as much as digits as its factorization.

206774941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84542.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 206774941 is about 14379.6711019411. The cubic root of 206774941 is about 591.3337069780. Note that the first 3 decimals are identical.

The spelling of 206774941 in words is "two hundred six million, seven hundred seventy-four thousand, nine hundred forty-one".