262387 has 2 divisors, whose sum is σ = 262388. Its totient is φ = 262386.

The previous prime is 262369. The next prime is 262391. The reversal of 262387 is 783262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 262387 - 2¹¹ = 260339 is a prime.

It is not a weakly prime, because it can be changed into another prime (262337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131193 + 131194.

It is an arithmetic number, because the mean of its divisors is an integer number (131194).

262387 is a Friedman number, since it can be written as 8^6+27*3^2, using all its digits and the basic arithmetic operations.

2²⁶²³⁸⁷ is an apocalyptic number.

262387 is a deficient number, since it is larger than the sum of its proper divisors (1).

262387 is an equidigital number, since it uses as much as digits as its factorization.

262387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The square root of 262387 is about 512.2372497193. The cubic root of 262387 is about 64.0197692834.

The spelling of 262387 in words is "two hundred sixty-two thousand, three hundred eighty-seven".