206121676 has 36 divisors (see below), whose sum is σ = 390196800. Its totient is φ = 95152288.

The previous prime is 206121673. The next prime is 206121679. The reversal of 206121676 is 676121602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (206121673) and next prime (206121679).

It is a super-2 number, since 2×206121676² = 84972290634097952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206121673) 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, 59685 + ... + 63043.

It is an arithmetic number, because the mean of its divisors is an integer number (10838800).

Almost surely, 2^206121676 is an apocalyptic number.

It is an amenable number.

206121676 is a deficient number, since it is larger than the sum of its proper divisors (184075124).

206121676 is a wasteful number, since it uses less digits than its factorization.

206121676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3438 (or 3413 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 206121676 is about 14356.9382529842. The cubic root of 206121676 is about 590.7103156097.

The spelling of 206121676 in words is "two hundred six million, one hundred twenty-one thousand, six hundred seventy-six".