678267 has 8 divisors (see below), whose sum is σ = 1004880. Its totient is φ = 452160.

The previous prime is 678253. The next prime is 678289. The reversal of 678267 is 762876.

It is not a de Polignac number, because 678267 - 2⁶ = 678203 is a prime.

It is a super-2 number, since 2×678267² = 920092246578, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (678217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12534 + ... + 12587.

It is an arithmetic number, because the mean of its divisors is an integer number (125610).

2⁶⁷⁸²⁶⁷ is an apocalyptic number.

678267 is a deficient number, since it is larger than the sum of its proper divisors (326613).

678267 is a wasteful number, since it uses less digits than its factorization.

678267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25130 (or 25124 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 678267 is about 823.5696691841. The cubic root of 678267 is about 87.8618268940.

The spelling of 678267 in words is "six hundred seventy-eight thousand, two hundred sixty-seven".