545976 has 24 divisors (see below), whose sum is σ = 1478880. Its totient is φ = 181968.

The previous prime is 545959. The next prime is 546001. The reversal of 545976 is 679545.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 545976.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3720 + ... + 3863.

It is an arithmetic number, because the mean of its divisors is an integer number (61620).

2⁵⁴⁵⁹⁷⁶ is an apocalyptic number.

It is an amenable number.

545976 is an abundant number, since it is smaller than the sum of its proper divisors (932904).

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

545976 is a wasteful number, since it uses less digits than its factorization.

545976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7595 (or 7588 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 545976 is about 738.9018879391. The cubic root of 545976 is about 81.7318226847.

It can be divided in two parts, 545 and 976, that added together give a square (1521 = 39²).

The spelling of 545976 in words is "five hundred forty-five thousand, nine hundred seventy-six".