687094 has 4 divisors (see below), whose sum is σ = 1030644. Its totient is φ = 343546.

The previous prime is 687083. The next prime is 687101. The reversal of 687094 is 490786.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171772 + ... + 171775.

It is an arithmetic number, because the mean of its divisors is an integer number (257661).

2⁶⁸⁷⁰⁹⁴ is an apocalyptic number.

687094 is a deficient number, since it is larger than the sum of its proper divisors (343550).

687094 is a wasteful number, since it uses less digits than its factorization.

687094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343549.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 687094 is about 828.9113342210. The cubic root of 687094 is about 88.2413313690.

The spelling of 687094 in words is "six hundred eighty-seven thousand, ninety-four".