273728797 has 4 divisors (see below), whose sum is σ = 274432860. Its totient is φ = 273024736.

The previous prime is 273728779. The next prime is 273728813. The reversal of 273728797 is 797827372.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 170929476 + 102799321 = 13074^2 + 10139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-273728797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273728737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351448 + ... + 352225.

It is an arithmetic number, because the mean of its divisors is an integer number (68608215).

Almost surely, 2^273728797 is an apocalyptic number.

It is an amenable number.

273728797 is a deficient number, since it is larger than the sum of its proper divisors (704063).

273728797 is an equidigital number, since it uses as much as digits as its factorization.

273728797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704062.

The product of its digits is 2074464, while the sum is 52.

The square root of 273728797 is about 16544.7513429486. The cubic root of 273728797 is about 649.2921659551.

The spelling of 273728797 in words is "two hundred seventy-three million, seven hundred twenty-eight thousand, seven hundred ninety-seven".