687416 has 16 divisors (see below), whose sum is σ = 1333800. Its totient is φ = 331744.

The previous prime is 687413. The next prime is 687431. The reversal of 687416 is 614786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250 + ... + 1713.

2⁶⁸⁷⁴¹⁶ is an apocalyptic number.

It is an amenable number.

687416 is a deficient number, since it is larger than the sum of its proper divisors (646384).

687416 is a wasteful number, since it uses less digits than its factorization.

687416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998 (or 2994 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 687416 is about 829.1055421356. The cubic root of 687416 is about 88.2551137003.

The spelling of 687416 in words is "six hundred eighty-seven thousand, four hundred sixteen".