545672 has 8 divisors (see below), whose sum is σ = 1023150. Its totient is φ = 272832.

The previous prime is 545663. The next prime is 545711. The reversal of 545672 is 276545.

It can be written as a sum of positive squares in only one way, i.e., 470596 + 75076 = 686^2 + 274^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34097 + ... + 34112.

2⁵⁴⁵⁶⁷² is an apocalyptic number.

It is an amenable number.

545672 is a deficient number, since it is larger than the sum of its proper divisors (477478).

545672 is a wasteful number, since it uses less digits than its factorization.

545672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68215 (or 68211 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 545672 is about 738.6961486295. The cubic root of 545672 is about 81.7166504140.

The spelling of 545672 in words is "five hundred forty-five thousand, six hundred seventy-two".