694724436 has 144 divisors (see below), whose sum is σ = 2123721600. Its totient is φ = 187059456.

The previous prime is 694724423. The next prime is 694724441. The reversal of 694724436 is 634427496.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 694724391 and 694724400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1785730 + ... + 1786118.

Almost surely, 2^694724436 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 694724436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1061860800).

694724436 is an abundant number, since it is smaller than the sum of its proper divisors (1428997164).

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

694724436 is a wasteful number, since it uses less digits than its factorization.

694724436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 793 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The square root of 694724436 is about 26357.6257656110. The cubic root of 694724436 is about 885.6678058311.

The spelling of 694724436 in words is "six hundred ninety-four million, seven hundred twenty-four thousand, four hundred thirty-six".