545787 has 24 divisors (see below), whose sum is σ = 889200. Its totient is φ = 319680.

The previous prime is 545773. The next prime is 545789. The reversal of 545787 is 787545.

It is not a de Polignac number, because 545787 - 2⁶ = 545723 is a prime.

Its product of digits (39200) is a multiple of the sum of its prime divisors (200).

It is not an unprimeable number, because it can be changed into a prime (545789) 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, 3589 + ... + 3737.

It is an arithmetic number, because the mean of its divisors is an integer number (37050).

2⁵⁴⁵⁷⁸⁷ is an apocalyptic number.

545787 is a deficient number, since it is larger than the sum of its proper divisors (343413).

545787 is a wasteful number, since it uses less digits than its factorization.

545787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 200 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 545787 is about 738.7739843822. The cubic root of 545787 is about 81.7223905867.

The spelling of 545787 in words is "five hundred forty-five thousand, seven hundred eighty-seven".