689148000 has 288 divisors, whose sum is σ = 2539948320. Its totient is φ = 183513600.

The previous prime is 689147983. The next prime is 689148017. The reversal of 689148000 is 841986.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (689147983) and next prime (689148017).

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 971646 + ... + 972354.

It is an arithmetic number, because the mean of its divisors is an integer number (8819265).

Almost surely, 2^689148000 is an apocalyptic number.

689148000 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 689148000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269974160).

689148000 is an abundant number, since it is smaller than the sum of its proper divisors (1850800320).

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

689148000 is an equidigital number, since it uses as much as digits as its factorization.

689148000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 689148000 is about 26251.6285209128. The cubic root of 689148000 is about 883.2917349186.

Adding to 689148000 its reverse (841986), we get a palindrome (689989986).

The spelling of 689148000 in words is "six hundred eighty-nine million, one hundred forty-eight thousand".