699328 has 42 divisors (see below), whose sum is σ = 1621536. Its totient is φ = 298368.

The previous prime is 699323. The next prime is 699343. The reversal of 699328 is 823996.

It is a zygodrome in base 4 and base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699323) by changing a digit.

699328 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3025 + ... + 3247.

It is an arithmetic number, because the mean of its divisors is an integer number (38608).

2⁶⁹⁹³²⁸ 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 699328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (810768).

699328 is an abundant number, since it is smaller than the sum of its proper divisors (922208).

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

699328 is a wasteful number, since it uses less digits than its factorization.

699328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 232 counting only the distinct ones).

The product of its digits is 23328, while the sum is 37.

The square root of 699328 is about 836.2583332918. The cubic root of 699328 is about 88.7619781492.

It can be divided in two parts, 6993 and 28, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 699328 in words is "six hundred ninety-nine thousand, three hundred twenty-eight".