675381 has 16 divisors (see below), whose sum is σ = 1065600. Its totient is φ = 372288.

The previous prime is 675347. The next prime is 675391. The reversal of 675381 is 183576.

675381 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 675381 - 2⁷ = 675253 is a prime.

It is a super-2 number, since 2×675381² = 912278990322, which contains 22 as substring.

It is an Ulam number.

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 675381.

It is not an unprimeable number, because it can be changed into a prime (675341) 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, 55 + ... + 1163.

It is an arithmetic number, because the mean of its divisors is an integer number (66600).

675381 is a Friedman number, since it can be written as 87*(6^5-13), using all its digits and the basic arithmetic operations.

2⁶⁷⁵³⁸¹ is an apocalyptic number.

It is an amenable number.

675381 is a deficient number, since it is larger than the sum of its proper divisors (390219).

675381 is a wasteful number, since it uses less digits than its factorization.

675381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148.

The product of its digits is 5040, while the sum is 30.

The square root of 675381 is about 821.8156727637. The cubic root of 675381 is about 87.7370334978.

The spelling of 675381 in words is "six hundred seventy-five thousand, three hundred eighty-one".