694912 has 32 divisors (see below), whose sum is σ = 1422900. Its totient is φ = 337920.

The previous prime is 694901. The next prime is 694919. The reversal of 694912 is 219496.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 553536 + 141376 = 744^2 + 376^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (694919) 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, 7764 + ... + 7852.

2⁶⁹⁴⁹¹² 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 694912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711450).

694912 is an abundant number, since it is smaller than the sum of its proper divisors (727988).

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

694912 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 12 representation: 694912 = (296194)₁₂.

694912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 152 counting only the distinct ones).

The product of its digits is 3888, while the sum is 31.

The square root of 694912 is about 833.6138194632. The cubic root of 694912 is about 88.5747503833.

The spelling of 694912 in words is "six hundred ninety-four thousand, nine hundred twelve".