1764230197 has 2 divisors, whose sum is σ = 1764230198. Its totient is φ = 1764230196.

The previous prime is 1764230191. The next prime is 1764230269. The reversal of 1764230197 is 7910324671.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1267787236 + 496442961 = 35606^2 + 22281^2 .

It is an emirp because it is prime and its reverse (7910324671) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1764230197 - 2¹¹ = 1764228149 is a prime.

It is a super-2 number, since 2×1764230197² = 6225016376013317618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1764230191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 882115098 + 882115099.

It is an arithmetic number, because the mean of its divisors is an integer number (882115099).

Almost surely, 2^1764230197 is an apocalyptic number.

It is an amenable number.

1764230197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1764230197 is an equidigital number, since it uses as much as digits as its factorization.

1764230197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 1764230197 is about 42002.7403510771. The cubic root of 1764230197 is about 1208.3286801797.

The spelling of 1764230197 in words is "one billion, seven hundred sixty-four million, two hundred thirty thousand, one hundred ninety-seven".