868581427 has 8 divisors (see below), whose sum is σ = 994320992. Its totient is φ = 743256000.

The previous prime is 868581383. The next prime is 868581457. The reversal of 868581427 is 724185868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 868581427 - 2⁷ = 868581299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (868581457) 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 7 ways as a sum of consecutive naturals, for example, 99024 + ... + 107437.

It is an arithmetic number, because the mean of its divisors is an integer number (124290124).

Almost surely, 2^868581427 is an apocalyptic number.

868581427 is a deficient number, since it is larger than the sum of its proper divisors (125739565).

868581427 is a wasteful number, since it uses less digits than its factorization.

868581427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207069.

The product of its digits is 860160, while the sum is 49.

The square root of 868581427 is about 29471.7055325952. The cubic root of 868581427 is about 954.1211277856.

The spelling of 868581427 in words is "eight hundred sixty-eight million, five hundred eighty-one thousand, four hundred twenty-seven".