693698560 has 136 divisors (see below), whose sum is σ = 1745865720. Its totient is φ = 264241152.

The previous prime is 693698513. The next prime is 693698567. The reversal of 693698560 is 65896396.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 89718784 + 603979776 = 9472^2 + 24576^2 .

It is a junction number, because it is equal to n+sod(n) for n = 693698498 and 693698507.

It is not an unprimeable number, because it can be changed into a prime (693698567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9502684 + ... + 9502756.

Almost surely, 2^693698560 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 693698560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (872932860).

693698560 is an abundant number, since it is smaller than the sum of its proper divisors (1052167160).

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

693698560 is an frugal number, since it uses more digits than its factorization.

693698560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 52.

The square root of 693698560 is about 26338.1578702839. The cubic root of 693698560 is about 885.2316458748.

The spelling of 693698560 in words is "six hundred ninety-three million, six hundred ninety-eight thousand, five hundred sixty".