699647648 has 96 divisors (see below), whose sum is σ = 1674981504. Its totient is φ = 280829952.

The previous prime is 699647639. The next prime is 699647651. The reversal of 699647648 is 846746996.

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, 1191611 + ... + 1192197.

It is an arithmetic number, because the mean of its divisors is an integer number (17447724).

Almost surely, 2^699647648 is an apocalyptic number.

699647648 is a gapful number since it is divisible by the number (68) 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 699647648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (837490752).

699647648 is an abundant number, since it is smaller than the sum of its proper divisors (975333856).

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

699647648 is a wasteful number, since it uses less digits than its factorization.

699647648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 926 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 59.

The square root of 699647648 is about 26450.8534455885. The cubic root of 699647648 is about 887.7549982862.

The spelling of 699647648 in words is "six hundred ninety-nine million, six hundred forty-seven thousand, six hundred forty-eight".