206470423 has 4 divisors (see below), whose sum is σ = 218615760. Its totient is φ = 194325088.

The previous prime is 206470409. The next prime is 206470469. The reversal of 206470423 is 324074602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 206470423 - 2¹³ = 206462231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206470391 and 206470400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206470403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6072643 + ... + 6072676.

It is an arithmetic number, because the mean of its divisors is an integer number (54653940).

Almost surely, 2^206470423 is an apocalyptic number.

206470423 is a deficient number, since it is larger than the sum of its proper divisors (12145337).

206470423 is a wasteful number, since it uses less digits than its factorization.

206470423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12145336.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 206470423 is about 14369.0787108986. The cubic root of 206470423 is about 591.0432781238.

The spelling of 206470423 in words is "two hundred six million, four hundred seventy thousand, four hundred twenty-three".