868953904 has 160 divisors (see below), whose sum is σ = 2209858560. Its totient is φ = 321408000.

The previous prime is 868953871. The next prime is 868953919. The reversal of 868953904 is 409359868.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2793909 + ... + 2794219.

It is an arithmetic number, because the mean of its divisors is an integer number (13811616).

Almost surely, 2^868953904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 868953904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1104929280).

868953904 is an abundant number, since it is smaller than the sum of its proper divisors (1340904656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

868953904 is a wasteful number, since it uses less digits than its factorization.

868953904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 868953904 is about 29478.0240857490. The cubic root of 868953904 is about 954.2574947304.

The spelling of 868953904 in words is "eight hundred sixty-eight million, nine hundred fifty-three thousand, nine hundred four".