677406 has 8 divisors (see below), whose sum is σ = 1354824. Its totient is φ = 225800.

The previous prime is 677387. The next prime is 677423. The reversal of 677406 is 604776.

677406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

677406 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56445 + ... + 56456.

It is an arithmetic number, because the mean of its divisors is an integer number (169353).

2⁶⁷⁷⁴⁰⁶ is an apocalyptic number.

677406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

677406 is a wasteful number, since it uses less digits than its factorization.

677406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112906.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 677406 is about 823.0467787435. The cubic root of 677406 is about 87.8246335441.

The spelling of 677406 in words is "six hundred seventy-seven thousand, four hundred six".