164206487 has 2 divisors, whose sum is σ = 164206488. Its totient is φ = 164206486.

The previous prime is 164206433. The next prime is 164206489. The reversal of 164206487 is 784602461.

It is a strong prime.

It is an emirp because it is prime and its reverse (784602461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164206487 - 2⁶ = 164206423 is a prime.

Together with 164206489, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164206487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164206489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82103243 + 82103244.

It is an arithmetic number, because the mean of its divisors is an integer number (82103244).

Almost surely, 2^164206487 is an apocalyptic number.

164206487 is a deficient number, since it is larger than the sum of its proper divisors (1).

164206487 is an equidigital number, since it uses as much as digits as its factorization.

164206487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 164206487 is about 12814.3079017167. The cubic root of 164206487 is about 547.5999964695.

The spelling of 164206487 in words is "one hundred sixty-four million, two hundred six thousand, four hundred eighty-seven".