868800491 has 16 divisors (see below), whose sum is σ = 954084768. Its totient is φ = 786240000.

The previous prime is 868800469. The next prime is 868800533. The reversal of 868800491 is 194008868.

It is a happy number.

It is not a de Polignac number, because 868800491 - 2¹⁴ = 868784107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (868800391) 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 15 ways as a sum of consecutive naturals, for example, 265616 + ... + 268866.

It is an arithmetic number, because the mean of its divisors is an integer number (59630298).

Almost surely, 2^868800491 is an apocalyptic number.

868800491 is a deficient number, since it is larger than the sum of its proper divisors (85284277).

868800491 is a wasteful number, since it uses less digits than its factorization.

868800491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3662.

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 868800491 is about 29475.4218120793. The cubic root of 868800491 is about 954.2013336688.

The spelling of 868800491 in words is "eight hundred sixty-eight million, eight hundred thousand, four hundred ninety-one".