694089344 has 64 divisors (see below), whose sum is σ = 1494045000. Its totient is φ = 319291392.

The previous prime is 694089343. The next prime is 694089391. The reversal of 694089344 is 443980496.

It is a happy number.

694089344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 298874944 + 395214400 = 17288^2 + 19880^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (694089343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746672 + ... + 747600.

Almost surely, 2^694089344 is an apocalyptic number.

694089344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 694089344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (747022500).

694089344 is an abundant number, since it is smaller than the sum of its proper divisors (799955656).

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

694089344 is a wasteful number, since it uses less digits than its factorization.

694089344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405 (or 1393 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 694089344 is about 26345.5754159973. The cubic root of 694089344 is about 885.3978417053.

The spelling of 694089344 in words is "six hundred ninety-four million, eighty-nine thousand, three hundred forty-four".