689547276 has 96 divisors (see below), whose sum is σ = 1957455360. Its totient is φ = 208180800.

The previous prime is 689547253. The next prime is 689547283. The reversal of 689547276 is 672745986.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 375681 + ... + 377511.

It is an arithmetic number, because the mean of its divisors is an integer number (20390160).

Almost surely, 2^689547276 is an apocalyptic number.

689547276 is a gapful number since it is divisible by the number (66) 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 689547276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (978727680).

689547276 is an abundant number, since it is smaller than the sum of its proper divisors (1267908084).

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

689547276 is a wasteful number, since it uses less digits than its factorization.

689547276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172 (or 2164 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 689547276 is about 26259.2322050741. The cubic root of 689547276 is about 883.4622880758.

The spelling of 689547276 in words is "six hundred eighty-nine million, five hundred forty-seven thousand, two hundred seventy-six".