164798593 has 2 divisors, whose sum is σ = 164798594. Its totient is φ = 164798592.

The previous prime is 164798581. The next prime is 164798617. The reversal of 164798593 is 395897461.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164147344 + 651249 = 12812^2 + 807^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164798593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164798593.

It is not a weakly prime, because it can be changed into another prime (164798563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82399296 + 82399297.

It is an arithmetic number, because the mean of its divisors is an integer number (82399297).

Almost surely, 2^164798593 is an apocalyptic number.

It is an amenable number.

164798593 is a deficient number, since it is larger than the sum of its proper divisors (1).

164798593 is an equidigital number, since it uses as much as digits as its factorization.

164798593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The square root of 164798593 is about 12837.3904279647. The cubic root of 164798593 is about 548.2573970184.

The spelling of 164798593 in words is "one hundred sixty-four million, seven hundred ninety-eight thousand, five hundred ninety-three".