206424671 has 8 divisors (see below), whose sum is σ = 211672464. Its totient is φ = 201237120.

The previous prime is 206424643. The next prime is 206424689. The reversal of 206424671 is 176424602.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206424671 is a prime.

It is a super-2 number, since 2×206424671² = 85222289594916482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206424601) 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, 8081 + ... + 21866.

It is an arithmetic number, because the mean of its divisors is an integer number (26459058).

Almost surely, 2^206424671 is an apocalyptic number.

206424671 is a deficient number, since it is larger than the sum of its proper divisors (5247793).

206424671 is a wasteful number, since it uses less digits than its factorization.

206424671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30121.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 206424671 is about 14367.4865929988. The cubic root of 206424671 is about 590.9996182632. Note that the first 3 decimals are identical.

The spelling of 206424671 in words is "two hundred six million, four hundred twenty-four thousand, six hundred seventy-one".