689727360 has 512 divisors, whose sum is σ = 2753510400. Its totient is φ = 143327232.

The previous prime is 689727331. The next prime is 689727373. The reversal of 689727360 is 63727986.

It is a super-2 number, since 2×689727360² = 951447662265139200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9448284 + ... + 9448356.

It is an arithmetic number, because the mean of its divisors is an integer number (5377950).

Almost surely, 2^689727360 is an apocalyptic number.

689727360 is a gapful number since it is divisible by the number (60) 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 689727360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1376755200).

689727360 is an abundant number, since it is smaller than the sum of its proper divisors (2063783040).

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

689727360 is a wasteful number, since it uses less digits than its factorization.

689727360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 689727360 is about 26262.6609466748. The cubic root of 689727360 is about 883.5391905016.

The spelling of 689727360 in words is "six hundred eighty-nine million, seven hundred twenty-seven thousand, three hundred sixty".