696779556 has 48 divisors (see below), whose sum is σ = 1781649408. Its totient is φ = 210189600.

The previous prime is 696779539. The next prime is 696779563. The reversal of 696779556 is 655977696.

It is a self number, because there is not a number n which added to its sum of digits gives 696779556.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17601 + ... + 41271.

It is an arithmetic number, because the mean of its divisors is an integer number (37117696).

Almost surely, 2^696779556 is an apocalyptic number.

696779556 is a gapful number since it is divisible by the number (66) 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 696779556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (890824704).

696779556 is an abundant number, since it is smaller than the sum of its proper divisors (1084869852).

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

696779556 is a wasteful number, since it uses less digits than its factorization.

696779556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23912 (or 23910 counting only the distinct ones).

The product of its digits is 21432600, while the sum is 60.

The square root of 696779556 is about 26396.5822787724. The cubic root of 696779556 is about 886.5402677214.

The spelling of 696779556 in words is "six hundred ninety-six million, seven hundred seventy-nine thousand, five hundred fifty-six".