87091267 has 2 divisors, whose sum is σ = 87091268. Its totient is φ = 87091266.

The previous prime is 87091261. The next prime is 87091273. The reversal of 87091267 is 76219078.

It is a balanced prime because it is at equal distance from previous prime (87091261) and next prime (87091273).

It is a cyclic number.

It is not a de Polignac number, because 87091267 - 2¹⁹ = 86566979 is a prime.

It is not a weakly prime, because it can be changed into another prime (87091261) 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, 43545633 + 43545634.

It is an arithmetic number, because the mean of its divisors is an integer number (43545634).

Almost surely, 2^87091267 is an apocalyptic number.

87091267 is a deficient number, since it is larger than the sum of its proper divisors (1).

87091267 is an equidigital number, since it uses as much as digits as its factorization.

87091267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 87091267 is about 9332.2701954026. The cubic root of 87091267 is about 443.2596537752.

The spelling of 87091267 in words is "eighty-seven million, ninety-one thousand, two hundred sixty-seven".