699791904 has 144 divisors (see below), whose sum is σ = 2306828160. Its totient is φ = 197084160.

The previous prime is 699791903. The next prime is 699791993. The reversal of 699791904 is 409197996.

699791904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (699791903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140692 + ... + 145580.

It is an arithmetic number, because the mean of its divisors is an integer number (16019640).

Almost surely, 2^699791904 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 699791904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1153414080).

699791904 is an abundant number, since it is smaller than the sum of its proper divisors (1607036256).

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

699791904 is a wasteful number, since it uses less digits than its factorization.

699791904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4983 (or 4972 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 54.

The square root of 699791904 is about 26453.5801735795. The cubic root of 699791904 is about 887.8160076552.

The spelling of 699791904 in words is "six hundred ninety-nine million, seven hundred ninety-one thousand, nine hundred four".