868634361 has 48 divisors (see below), whose sum is σ = 1538409600. Its totient is φ = 479219328.

The previous prime is 868634339. The next prime is 868634413. The reversal of 868634361 is 163436868.

868634361 is a `hidden beast` number, since 8 + 6 + 8 + 634 + 3 + 6 + 1 = 666.

It is not a de Polignac number, because 868634361 - 2¹⁵ = 868601593 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (868634161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40525 + ... + 58133.

It is an arithmetic number, because the mean of its divisors is an integer number (32050200).

Almost surely, 2^868634361 is an apocalyptic number.

868634361 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

868634361 is a deficient number, since it is larger than the sum of its proper divisors (669775239).

868634361 is a wasteful number, since it uses less digits than its factorization.

868634361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17660 (or 17648 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 868634361 is about 29472.6035667024. The cubic root of 868634361 is about 954.1405097419.

The spelling of 868634361 in words is "eight hundred sixty-eight million, six hundred thirty-four thousand, three hundred sixty-one".