683946924 has 144 divisors (see below), whose sum is σ = 1815367680. Its totient is φ = 199480320.

The previous prime is 683946911. The next prime is 683946937. The reversal of 683946924 is 429649386.

It is an interprime number because it is at equal distance from previous prime (683946911) and next prime (683946937).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 8657517 + ... + 8657595.

It is an arithmetic number, because the mean of its divisors is an integer number (12606720).

Almost surely, 2^683946924 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 683946924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (907683840).

683946924 is an abundant number, since it is smaller than the sum of its proper divisors (1131420756).

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

683946924 is a wasteful number, since it uses less digits than its factorization.

683946924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 169 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 51.

The square root of 683946924 is about 26152.3789357680. The cubic root of 683946924 is about 881.0640211532.

The spelling of 683946924 in words is "six hundred eighty-three million, nine hundred forty-six thousand, nine hundred twenty-four".