547977 has 4 divisors (see below), whose sum is σ = 730640. Its totient is φ = 365316.

The previous prime is 547957. The next prime is 547999. The reversal of 547977 is 779745.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 547977 - 2⁷ = 547849 is a prime.

It is a d-powerful number, because it can be written as 5 + 4⁷ + 9⁶ + 7² + 7² + 7² .

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (547957) 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, 91327 + ... + 91332.

It is an arithmetic number, because the mean of its divisors is an integer number (182660).

2⁵⁴⁷⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

547977 is a deficient number, since it is larger than the sum of its proper divisors (182663).

547977 is a wasteful number, since it uses less digits than its factorization.

547977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182662.

The product of its digits is 61740, while the sum is 39.

The square root of 547977 is about 740.2546859021. The cubic root of 547977 is about 81.8315498920.

The spelling of 547977 in words is "five hundred forty-seven thousand, nine hundred seventy-seven".