678411 has 12 divisors (see below), whose sum is σ = 1003288. Its totient is φ = 441504.

The previous prime is 678409. The next prime is 678413. The reversal of 678411 is 114876.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (678409) and next prime (678413).

It is not a de Polignac number, because 678411 - 2¹ = 678409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (678413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 490 + ... + 1263.

2⁶⁷⁸⁴¹¹ is an apocalyptic number.

678411 is a deficient number, since it is larger than the sum of its proper divisors (324877).

678411 is a wasteful number, since it uses less digits than its factorization.

678411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802 (or 1799 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 678411 is about 823.6570888422. The cubic root of 678411 is about 87.8680443117.

It can be divided in two parts, 678 and 411, that added together give a square (1089 = 33²).

The spelling of 678411 in words is "six hundred seventy-eight thousand, four hundred eleven".