231217673 has 2 divisors, whose sum is σ = 231217674. Its totient is φ = 231217672.

The previous prime is 231217661. The next prime is 231217703. The reversal of 231217673 is 376712132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190219264 + 40998409 = 13792^2 + 6403^2 .

It is a cyclic number.

It is not a de Polignac number, because 231217673 - 2¹⁰ = 231216649 is a prime.

It is a super-2 number, since 2×231217673² = 106923224615069858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (231217073) 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, 115608836 + 115608837.

It is an arithmetic number, because the mean of its divisors is an integer number (115608837).

Almost surely, 2^231217673 is an apocalyptic number.

It is an amenable number.

231217673 is a deficient number, since it is larger than the sum of its proper divisors (1).

231217673 is an equidigital number, since it uses as much as digits as its factorization.

231217673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 32.

The square root of 231217673 is about 15205.8433833839. The cubic root of 231217673 is about 613.7719102076.

The spelling of 231217673 in words is "two hundred thirty-one million, two hundred seventeen thousand, six hundred seventy-three".