868865654 has 16 divisors (see below), whose sum is σ = 1339512768. Its totient is φ = 422450952.

The previous prime is 868865629. The next prime is 868865659. The reversal of 868865654 is 456568868.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 868865654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868865659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2732 + ... + 41775.

It is an arithmetic number, because the mean of its divisors is an integer number (83719548).

Almost surely, 2^868865654 is an apocalyptic number.

868865654 is a deficient number, since it is larger than the sum of its proper divisors (470647114).

868865654 is a wasteful number, since it uses less digits than its factorization.

868865654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44779.

The product of its digits is 11059200, while the sum is 56.

The square root of 868865654 is about 29476.5271699364. The cubic root of 868865654 is about 954.2251891906.

The spelling of 868865654 in words is "eight hundred sixty-eight million, eight hundred sixty-five thousand, six hundred fifty-four".