272778 has 16 divisors (see below), whose sum is σ = 595296. Its totient is φ = 82640.

The previous prime is 272777. The next prime is 272807. The reversal of 272778 is 877272.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (272771) 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 in 7 ways as a sum of consecutive naturals, for example, 2001 + ... + 2132.

It is an arithmetic number, because the mean of its divisors is an integer number (37206).

2²⁷²⁷⁷⁸ is an apocalyptic number.

272778 is an abundant number, since it is smaller than the sum of its proper divisors (322518).

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

272778 is a wasteful number, since it uses less digits than its factorization.

272778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149.

The product of its digits is 10976, while the sum is 33.

The square root of 272778 is about 522.2815332749. The cubic root of 272778 is about 64.8539521713.

The spelling of 272778 in words is "two hundred seventy-two thousand, seven hundred seventy-eight".