676689624 has 288 divisors, whose sum is σ = 2232528480. Its totient is φ = 183085056.

The previous prime is 676689623. The next prime is 676689649. The reversal of 676689624 is 426986676.

676689624 is a `hidden beast` number, since 6 + 7 + 6 + 6 + 8 + 9 + 624 = 666.

676689624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×676689624² = 915817694458522752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676689623) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 15736947 + ... + 15736989.

It is an arithmetic number, because the mean of its divisors is an integer number (7751835).

Almost surely, 2^676689624 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 676689624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1116264240).

676689624 is an abundant number, since it is smaller than the sum of its proper divisors (1555838856).

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

676689624 is a wasteful number, since it uses less digits than its factorization.

676689624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 101 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 676689624 is about 26013.2586194041. The cubic root of 676689624 is about 877.9366361324.

The spelling of 676689624 in words is "six hundred seventy-six million, six hundred eighty-nine thousand, six hundred twenty-four".