867242059 has 4 divisors (see below), whose sum is σ = 869115616. Its totient is φ = 865368504.

The previous prime is 867242009. The next prime is 867242069. The reversal of 867242059 is 950242768.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 867242059 - 2¹³ = 867233867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (867242009) 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 in 3 ways as a sum of consecutive naturals, for example, 936084 + ... + 937009.

It is an arithmetic number, because the mean of its divisors is an integer number (217278904).

Almost surely, 2^867242059 is an apocalyptic number.

867242059 is a deficient number, since it is larger than the sum of its proper divisors (1873557).

867242059 is a wasteful number, since it uses less digits than its factorization.

867242059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873556.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 867242059 is about 29448.9738191333. The cubic root of 867242059 is about 953.6304515756.

The spelling of 867242059 in words is "eight hundred sixty-seven million, two hundred forty-two thousand, fifty-nine".