689910480 has 320 divisors, whose sum is σ = 2748395520. Its totient is φ = 155810304.

The previous prime is 689910469. The next prime is 689910499. The reversal of 689910480 is 84019986.

689910480 is a `hidden beast` number, since 6 + 89 + 91 + 0 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 1557139 + ... + 1557581.

It is an arithmetic number, because the mean of its divisors is an integer number (8588736).

Almost surely, 2^689910480 is an apocalyptic number.

689910480 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 689910480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1374197760).

689910480 is an abundant number, since it is smaller than the sum of its proper divisors (2058485040).

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

689910480 is a wasteful number, since it uses less digits than its factorization.

689910480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 689910480 is about 26266.1470337771. The cubic root of 689910480 is about 883.6173756849.

The spelling of 689910480 in words is "six hundred eighty-nine million, nine hundred ten thousand, four hundred eighty".