277028 has 6 divisors (see below), whose sum is σ = 484806. Its totient is φ = 138512.

The previous prime is 277021. The next prime is 277051. The reversal of 277028 is 820772.

It can be written as a sum of positive squares in only one way, i.e., 262144 + 14884 = 512^2 + 122^2 .

It is a junction number, because it is equal to n+sod(n) for n = 276988 and 277006.

It is not an unprimeable number, because it can be changed into a prime (277021) by changing a digit.

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, 34625 + ... + 34632.

It is an arithmetic number, because the mean of its divisors is an integer number (80801).

2²⁷⁷⁰²⁸ is an apocalyptic number.

It is an amenable number.

277028 is a deficient number, since it is larger than the sum of its proper divisors (207778).

277028 is a wasteful number, since it uses less digits than its factorization.

277028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69261 (or 69259 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 277028 is about 526.3344944045. The cubic root of 277028 is about 65.1890355055.

The spelling of 277028 in words is "two hundred seventy-seven thousand, twenty-eight".