687352 has 16 divisors (see below), whose sum is σ = 1299600. Its totient is φ = 340800.

The previous prime is 687343. The next prime is 687359. The reversal of 687352 is 253786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687359) by changing a digit.

687352 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 924 + ... + 1492.

It is an arithmetic number, because the mean of its divisors is an integer number (81225).

2⁶⁸⁷³⁵² is an apocalyptic number.

It is an amenable number.

687352 is a deficient number, since it is larger than the sum of its proper divisors (612248).

687352 is a wasteful number, since it uses less digits than its factorization.

687352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726 (or 722 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 687352 is about 829.0669454272. The cubic root of 687352 is about 88.2523746977.

The spelling of 687352 in words is "six hundred eighty-seven thousand, three hundred fifty-two".