87273469 has 2 divisors, whose sum is σ = 87273470. Its totient is φ = 87273468.

The previous prime is 87273443. The next prime is 87273481. The reversal of 87273469 is 96437278.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78092569 + 9180900 = 8837^2 + 3030^2 .

It is a cyclic number.

It is not a de Polignac number, because 87273469 - 2⁵ = 87273437 is a prime.

It is a super-2 number, since 2×87273469² = 15233316782587922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87273409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43636734 + 43636735.

It is an arithmetic number, because the mean of its divisors is an integer number (43636735).

Almost surely, 2^87273469 is an apocalyptic number.

It is an amenable number.

87273469 is a deficient number, since it is larger than the sum of its proper divisors (1).

87273469 is an equidigital number, since it uses as much as digits as its factorization.

87273469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 46.

The square root of 87273469 is about 9342.0270284345. The cubic root of 87273469 is about 443.5685501886.

The spelling of 87273469 in words is "eighty-seven million, two hundred seventy-three thousand, four hundred sixty-nine".