689627484 has 108 divisors (see below), whose sum is σ = 2157429456. Its totient is φ = 181868544.

The previous prime is 689627483. The next prime is 689627489. The reversal of 689627484 is 484726986.

689627484 is a `hidden beast` number, since 6 + 8 + 9 + 627 + 4 + 8 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 689627484.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689627483) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 34492 + ... + 50684.

Almost surely, 2^689627484 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 689627484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1078714728).

689627484 is an abundant number, since it is smaller than the sum of its proper divisors (1467801972).

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

689627484 is a wasteful number, since it uses less digits than its factorization.

689627484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16236 (or 16218 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The square root of 689627484 is about 26260.7593949604. The cubic root of 689627484 is about 883.4965414661.

The spelling of 689627484 in words is "six hundred eighty-nine million, six hundred twenty-seven thousand, four hundred eighty-four".