693691944 has 64 divisors (see below), whose sum is σ = 1897560000. Its totient is φ = 209579520.

The previous prime is 693691913. The next prime is 693691951. The reversal of 693691944 is 449196396.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88372 + ... + 95900.

It is an arithmetic number, because the mean of its divisors is an integer number (29649375).

Almost surely, 2^693691944 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 693691944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (948780000).

693691944 is an abundant number, since it is smaller than the sum of its proper divisors (1203868056).

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

693691944 is a wasteful number, since it uses less digits than its factorization.

693691944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7898 (or 7894 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 51.

The square root of 693691944 is about 26338.0322727420. The cubic root of 693691944 is about 885.2288316307.

The spelling of 693691944 in words is "six hundred ninety-three million, six hundred ninety-one thousand, nine hundred forty-four".