675540 has 72 divisors (see below), whose sum is σ = 2140320. Its totient is φ = 178848.

The previous prime is 675539. The next prime is 675541. The reversal of 675540 is 45576.

675540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (675539) and next prime (675541).

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 675540.

It is not an unprimeable number, because it can be changed into a prime (675541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4791 + ... + 4929.

2⁶⁷⁵⁵⁴⁰ is an apocalyptic number.

675540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 675540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1070160).

675540 is an abundant number, since it is smaller than the sum of its proper divisors (1464780).

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

675540 is a wasteful number, since it uses less digits than its factorization.

675540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 149 counting only the distinct ones).

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

The square root of 675540 is about 821.9124040918. The cubic root of 675540 is about 87.7439180532.

The spelling of 675540 in words is "six hundred seventy-five thousand, five hundred forty".