699899560 has 72 divisors (see below), whose sum is σ = 1627274430. Its totient is φ = 270924544.

The previous prime is 699899527. The next prime is 699899593. The reversal of 699899560 is 65998996.

It is an interprime number because it is at equal distance from previous prime (699899527) and next prime (699899593).

It can be written as a sum of positive squares in 3 ways, for example, as 342916324 + 356983236 = 18518^2 + 18894^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7863996 + ... + 7864084.

Almost surely, 2^699899560 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 699899560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (813637215).

699899560 is an abundant number, since it is smaller than the sum of its proper divisors (927374870).

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

699899560 is an equidigital number, since it uses as much as digits as its factorization.

699899560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 9447840, while the sum is 61.

The square root of 699899560 is about 26455.6149049687. The cubic root of 699899560 is about 887.8615325313.

The spelling of 699899560 in words is "six hundred ninety-nine million, eight hundred ninety-nine thousand, five hundred sixty".