868440705 has 32 divisors (see below), whose sum is σ = 1521376128. Its totient is φ = 419520000.

The previous prime is 868440659. The next prime is 868440707. The reversal of 868440705 is 507044868.

It is not a de Polignac number, because 868440705 - 2¹² = 868436609 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (868440707) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36205 + ... + 55205.

It is an arithmetic number, because the mean of its divisors is an integer number (47543004).

Almost surely, 2^868440705 is an apocalyptic number.

It is an amenable number.

868440705 is a deficient number, since it is larger than the sum of its proper divisors (652935423).

868440705 is a wasteful number, since it uses less digits than its factorization.

868440705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19297.

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 868440705 is about 29469.3180273993. The cubic root of 868440705 is about 954.0695981378.

The spelling of 868440705 in words is "eight hundred sixty-eight million, four hundred forty thousand, seven hundred five".