545864 has 16 divisors (see below), whose sum is σ = 1116720. Its totient is φ = 248080.

The previous prime is 545863. The next prime is 545873. The reversal of 545864 is 468545.

It is a self number, because there is not a number n which added to its sum of digits gives 545864.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 545864.

It is not an unprimeable number, because it can be changed into a prime (545863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3014 + ... + 3189.

It is an arithmetic number, because the mean of its divisors is an integer number (69795).

2⁵⁴⁵⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

545864 is an abundant number, since it is smaller than the sum of its proper divisors (570856).

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

545864 is a wasteful number, since it uses less digits than its factorization.

545864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6220 (or 6216 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

The square root of 545864 is about 738.8260959116. The cubic root of 545864 is about 81.7262335561.

The spelling of 545864 in words is "five hundred forty-five thousand, eight hundred sixty-four".