545981976 has 24 divisors (see below), whose sum is σ = 1478701380. Its totient is φ = 181993968.

The previous prime is 545981963. The next prime is 545981993. The reversal of 545981976 is 679189545.

545981976 is a `hidden beast` number, since 545 + 9 + 8 + 1 + 97 + 6 = 666.

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

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, 3791470 + ... + 3791613.

Almost surely, 2^545981976 is an apocalyptic number.

It is an amenable number.

545981976 is an abundant number, since it is smaller than the sum of its proper divisors (932719404).

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

545981976 is a wasteful number, since it uses less digits than its factorization.

545981976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7583095 (or 7583088 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The square root of 545981976 is about 23366.2572099170. The cubic root of 545981976 is about 817.3212088312.

The spelling of 545981976 in words is "five hundred forty-five million, nine hundred eighty-one thousand, nine hundred seventy-six".