206460823 has 2 divisors, whose sum is σ = 206460824. Its totient is φ = 206460822.

The previous prime is 206460797. The next prime is 206460827. The reversal of 206460823 is 328064602.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206460823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206460827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103230411 + 103230412.

It is an arithmetic number, because the mean of its divisors is an integer number (103230412).

Almost surely, 2^206460823 is an apocalyptic number.

206460823 is a deficient number, since it is larger than the sum of its proper divisors (1).

206460823 is an equidigital number, since it uses as much as digits as its factorization.

206460823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 206460823 is about 14368.7446563713. The cubic root of 206460823 is about 591.0341176456.

The spelling of 206460823 in words is "two hundred six million, four hundred sixty thousand, eight hundred twenty-three".