687074 has 8 divisors (see below), whose sum is σ = 1043280. Its totient is φ = 339316.

The previous prime is 687073. The next prime is 687083. The reversal of 687074 is 470786.

687074 is nontrivially palindromic in base 8.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 687074.

It is not an unprimeable number, because it can be changed into a prime (687073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1904 + ... + 2235.

It is an arithmetic number, because the mean of its divisors is an integer number (130410).

2⁶⁸⁷⁰⁷⁴ is an apocalyptic number.

687074 is a deficient number, since it is larger than the sum of its proper divisors (356206).

687074 is a wasteful number, since it uses less digits than its factorization.

687074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4224.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 687074 is about 828.8992701167. The cubic root of 687074 is about 88.2404751816.

The spelling of 687074 in words is "six hundred eighty-seven thousand, seventy-four".