699696 has 60 divisors (see below), whose sum is σ = 2021448. Its totient is φ = 225792.

The previous prime is 699649. The next prime is 699697. The reversal of 699696 is 696996.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (699697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6136 + ... + 6248.

699696 is a Friedman number, since it can be written as (6^6-9)*(9+6)-9, using all its digits and the basic arithmetic operations.

2⁶⁹⁹⁶⁹⁶ 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 699696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1010724).

699696 is an abundant number, since it is smaller than the sum of its proper divisors (1321752).

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

699696 is a wasteful number, since it uses less digits than its factorization.

699696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 161 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 699696 is about 836.4783320565. The cubic root of 699696 is about 88.7775448457. Note that the first 3 decimals are identical.

The spelling of 699696 in words is "six hundred ninety-nine thousand, six hundred ninety-six".