206900881 has 8 divisors (see below), whose sum is σ = 228247200. Its totient is φ = 185977440.

The previous prime is 206900879. The next prime is 206900927. The reversal of 206900881 is 188009602.

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

It is not a de Polignac number, because 206900881 - 2¹ = 206900879 is a prime.

It is a super-2 number, since 2×206900881² = 85615949117152322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206900831) 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, 104691 + ... + 106648.

It is an arithmetic number, because the mean of its divisors is an integer number (28530900).

Almost surely, 2^206900881 is an apocalyptic number.

It is an amenable number.

206900881 is a deficient number, since it is larger than the sum of its proper divisors (21346319).

206900881 is a wasteful number, since it uses less digits than its factorization.

206900881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211439.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 206900881 is about 14384.0495341194. The cubic root of 206900881 is about 591.4537367588.

The spelling of 206900881 in words is "two hundred six million, nine hundred thousand, eight hundred eighty-one".