723878816 has 24 divisors (see below), whose sum is σ = 1487100384. Its totient is φ = 346202560.

The previous prime is 723878807. The next prime is 723878843. The reversal of 723878816 is 618878327.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491030 + ... + 492501.

It is an arithmetic number, because the mean of its divisors is an integer number (61962516).

Almost surely, 2^723878816 is an apocalyptic number.

It is an amenable number.

723878816 is an abundant number, since it is smaller than the sum of its proper divisors (763221568).

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

723878816 is a wasteful number, since it uses less digits than its factorization.

723878816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983564 (or 983556 counting only the distinct ones).

The product of its digits is 903168, while the sum is 50.

The square root of 723878816 is about 26904.9961159633. The cubic root of 723878816 is about 897.8875625383.

The spelling of 723878816 in words is "seven hundred twenty-three million, eight hundred seventy-eight thousand, eight hundred sixteen".