687269250 has 192 divisors, whose sum is σ = 1946101248. Its totient is φ = 174873600.

The previous prime is 687269213. The next prime is 687269257. The reversal of 687269250 is 52962786.

687269250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 687269196 and 687269205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687269257) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7085202 + ... + 7085298.

It is an arithmetic number, because the mean of its divisors is an integer number (10135944).

Almost surely, 2^687269250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 687269250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (973050624).

687269250 is an abundant number, since it is smaller than the sum of its proper divisors (1258831998).

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

687269250 is a wasteful number, since it uses less digits than its factorization.

687269250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 687269250 is about 26215.8206051232. The cubic root of 687269250 is about 882.4883300091.

The spelling of 687269250 in words is "six hundred eighty-seven million, two hundred sixty-nine thousand, two hundred fifty".