206942477 has 16 divisors (see below), whose sum is σ = 247296000. Its totient is φ = 169318512.

The previous prime is 206942467. The next prime is 206942497. The reversal of 206942477 is 774249602.

It is a cyclic number.

It is not a de Polignac number, because 206942477 - 2¹⁶ = 206876941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206942447) 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 15 ways as a sum of consecutive naturals, for example, 102524 + ... + 104522.

It is an arithmetic number, because the mean of its divisors is an integer number (15456000).

Almost surely, 2^206942477 is an apocalyptic number.

It is an amenable number.

206942477 is a deficient number, since it is larger than the sum of its proper divisors (40353523).

206942477 is a wasteful number, since it uses less digits than its factorization.

206942477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 206942477 is about 14385.4953685996. The cubic root of 206942477 is about 591.4933700058.

The spelling of 206942477 in words is "two hundred six million, nine hundred forty-two thousand, four hundred seventy-seven".