164850797 has 2 divisors, whose sum is σ = 164850798. Its totient is φ = 164850796.

The previous prime is 164850787. The next prime is 164850817. The reversal of 164850797 is 797058461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122522761 + 42328036 = 11069^2 + 6506^2 .

It is an emirp because it is prime and its reverse (797058461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164850797 - 2⁴ = 164850781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164850737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82425398 + 82425399.

It is an arithmetic number, because the mean of its divisors is an integer number (82425399).

Almost surely, 2^164850797 is an apocalyptic number.

It is an amenable number.

164850797 is a deficient number, since it is larger than the sum of its proper divisors (1).

164850797 is an equidigital number, since it uses as much as digits as its factorization.

164850797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 164850797 is about 12839.4235462500. The cubic root of 164850797 is about 548.3152822366.

The spelling of 164850797 in words is "one hundred sixty-four million, eight hundred fifty thousand, seven hundred ninety-seven".