727898 has 4 divisors (see below), whose sum is σ = 1091850. Its totient is φ = 363948.

The previous prime is 727891. The next prime is 727933. The reversal of 727898 is 898727.

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

It can be written as a sum of positive squares in only one way, i.e., 727609 + 289 = 853^2 + 17^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (727891) 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 as a sum of consecutive naturals, namely, 181973 + ... + 181976.

2⁷²⁷⁸⁹⁸ is an apocalyptic number.

727898 is a deficient number, since it is larger than the sum of its proper divisors (363952).

727898 is a wasteful number, since it uses less digits than its factorization.

727898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363951.

The product of its digits is 56448, while the sum is 41.

The square root of 727898 is about 853.1693852923. The cubic root of 727898 is about 89.9546273354.

The spelling of 727898 in words is "seven hundred twenty-seven thousand, eight hundred ninety-eight".