699648 has 36 divisors (see below), whose sum is σ = 1864128. Its totient is φ = 232960.

The previous prime is 699641. The next prime is 699649. The reversal of 699648 is 846996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699641) 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 3 ways as a sum of consecutive naturals, for example, 313 + ... + 1223.

2⁶⁹⁹⁶⁴⁸ 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 699648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (932064).

699648 is an abundant number, since it is smaller than the sum of its proper divisors (1164480).

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

699648 is an equidigital number, since it uses as much as digits as its factorization.

699648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930 (or 916 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 699648 is about 836.4496398469. The cubic root of 699648 is about 88.7755147166.

The spelling of 699648 in words is "six hundred ninety-nine thousand, six hundred forty-eight".