687505350 has 48 divisors (see below), whose sum is σ = 1948589568. Its totient is φ = 157143840.

The previous prime is 687505333. The next prime is 687505361. The reversal of 687505350 is 53505786.

It is a junction number, because it is equal to n+sod(n) for n = 687505299 and 687505308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 326334 + ... + 328433.

It is an arithmetic number, because the mean of its divisors is an integer number (40595616).

Almost surely, 2^687505350 is an apocalyptic number.

687505350 is an abundant number, since it is smaller than the sum of its proper divisors (1261084218).

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

687505350 is a wasteful number, since it uses less digits than its factorization.

687505350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654789 (or 654784 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 687505350 is about 26220.3232245524. The cubic root of 687505350 is about 882.5893732030.

The spelling of 687505350 in words is "six hundred eighty-seven million, five hundred five thousand, three hundred fifty".