87326273 has 2 divisors, whose sum is σ = 87326274. Its totient is φ = 87326272.

The previous prime is 87326251. The next prime is 87326293. The reversal of 87326273 is 37262378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55606849 + 31719424 = 7457^2 + 5632^2 .

It is a cyclic number.

It is not a de Polignac number, because 87326273 - 2¹² = 87322177 is a prime.

It is not a weakly prime, because it can be changed into another prime (87326243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43663136 + 43663137.

It is an arithmetic number, because the mean of its divisors is an integer number (43663137).

Almost surely, 2^87326273 is an apocalyptic number.

It is an amenable number.

87326273 is a deficient number, since it is larger than the sum of its proper divisors (1).

87326273 is an equidigital number, since it uses as much as digits as its factorization.

87326273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 38.

The square root of 87326273 is about 9344.8527543242. The cubic root of 87326273 is about 443.6579911599.

The spelling of 87326273 in words is "eighty-seven million, three hundred twenty-six thousand, two hundred seventy-three".