696387720 has 256 divisors, whose sum is σ = 2521497600. Its totient is φ = 150497280.

The previous prime is 696387697. The next prime is 696387733. The reversal of 696387720 is 27783696.

It is a self number, because there is not a number n which added to its sum of digits gives 696387720.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1223596 + ... + 1224164.

It is an arithmetic number, because the mean of its divisors is an integer number (9849600).

Almost surely, 2^696387720 is an apocalyptic number.

696387720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 696387720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1260748800).

696387720 is an abundant number, since it is smaller than the sum of its proper divisors (1825109880).

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

696387720 is a wasteful number, since it uses less digits than its factorization.

696387720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 696387720 is about 26389.1591377975. The cubic root of 696387720 is about 886.3740537321.

The spelling of 696387720 in words is "six hundred ninety-six million, three hundred eighty-seven thousand, seven hundred twenty".