694624 has 36 divisors (see below), whose sum is σ = 1594404. Its totient is φ = 297024.

The previous prime is 694619. The next prime is 694633. The reversal of 694624 is 426496.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

694624 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, 1347 + ... + 1789.

It is an arithmetic number, because the mean of its divisors is an integer number (44289).

2⁶⁹⁴⁶²⁴ 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 694624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (797202).

694624 is an abundant number, since it is smaller than the sum of its proper divisors (899780).

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

694624 is a wasteful number, since it uses less digits than its factorization.

694624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 452 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 694624 is about 833.4410597037. The cubic root of 694624 is about 88.5625123575.

The spelling of 694624 in words is "six hundred ninety-four thousand, six hundred twenty-four".