277968 has 20 divisors (see below), whose sum is σ = 718208. Its totient is φ = 92640.

The previous prime is 277961. The next prime is 277993. The reversal of 277968 is 869772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (277961) by changing a digit.

277968 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2848 + ... + 2943.

2²⁷⁷⁹⁶⁸ is an apocalyptic number.

It is an amenable number.

277968 is an abundant number, since it is smaller than the sum of its proper divisors (440240).

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

277968 is a wasteful number, since it uses less digits than its factorization.

277968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5802 (or 5796 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 277968 is about 527.2267064556. The cubic root of 277968 is about 65.2626845174.

The spelling of 277968 in words is "two hundred seventy-seven thousand, nine hundred sixty-eight".