867286897 has 4 divisors (see below), whose sum is σ = 868304500. Its totient is φ = 866269296.

The previous prime is 867286877. The next prime is 867287017. The reversal of 867286897 is 798682768.

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

It can be written as a sum of positive squares in 2 ways, for example, as 468246321 + 399040576 = 21639^2 + 19976^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-867286897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (867286877) 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 in 3 ways as a sum of consecutive naturals, for example, 507522 + ... + 509227.

It is an arithmetic number, because the mean of its divisors is an integer number (217076125).

Almost surely, 2^867286897 is an apocalyptic number.

It is an amenable number.

867286897 is a deficient number, since it is larger than the sum of its proper divisors (1017603).

867286897 is a wasteful number, since it uses less digits than its factorization.

867286897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017602.

The product of its digits is 16257024, while the sum is 61.

The square root of 867286897 is about 29449.7350921872. The cubic root of 867286897 is about 953.6468861050.

The spelling of 867286897 in words is "eight hundred sixty-seven million, two hundred eighty-six thousand, eight hundred ninety-seven".