675405 has 16 divisors (see below), whose sum is σ = 1200960. Its totient is φ = 360144.

The previous prime is 675391. The next prime is 675407. The reversal of 675405 is 504576.

675405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 675405 - 2⁶ = 675341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 675405.

It is not an unprimeable number, because it can be changed into a prime (675407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2367 + ... + 2636.

It is an arithmetic number, because the mean of its divisors is an integer number (75060).

2⁶⁷⁵⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

675405 is a deficient number, since it is larger than the sum of its proper divisors (525555).

675405 is a wasteful number, since it uses less digits than its factorization.

675405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5017 (or 5011 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 675405 is about 821.8302744484. The cubic root of 675405 is about 87.7380727452.

The spelling of 675405 in words is "six hundred seventy-five thousand, four hundred five".