689099760 has 120 divisors (see below), whose sum is σ = 2450401200. Its totient is φ = 172947456.

The previous prime is 689099753. The next prime is 689099773. The reversal of 689099760 is 67990986.

It is a tau number, because it is divible by the number of its divisors (120).

It is a junction number, because it is equal to n+sod(n) for n = 689099697 and 689099706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15910 + ... + 40389.

It is an arithmetic number, because the mean of its divisors is an integer number (20420010).

Almost surely, 2^689099760 is an apocalyptic number.

689099760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

689099760 is an abundant number, since it is smaller than the sum of its proper divisors (1761301440).

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

689099760 is a wasteful number, since it uses less digits than its factorization.

689099760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56335 (or 56326 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 689099760 is about 26250.7097046918. The cubic root of 689099760 is about 883.2711244510.

The spelling of 689099760 in words is "six hundred eighty-nine million, ninety-nine thousand, seven hundred sixty".