206894873 has 2 divisors, whose sum is σ = 206894874. Its totient is φ = 206894872.

The previous prime is 206894869. The next prime is 206894911. The reversal of 206894873 is 378498602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118309129 + 88585744 = 10877^2 + 9412^2 .

It is a cyclic number.

It is not a de Polignac number, because 206894873 - 2² = 206894869 is a prime.

It is a super-2 number, since 2×206894873² = 85610976947372258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (206894833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103447436 + 103447437.

It is an arithmetic number, because the mean of its divisors is an integer number (103447437).

Almost surely, 2^206894873 is an apocalyptic number.

It is an amenable number.

206894873 is a deficient number, since it is larger than the sum of its proper divisors (1).

206894873 is an equidigital number, since it uses as much as digits as its factorization.

206894873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 206894873 is about 14383.8406901634. The cubic root of 206894873 is about 591.4480118139.

The spelling of 206894873 in words is "two hundred six million, eight hundred ninety-four thousand, eight hundred seventy-three".