728616279 has 16 divisors (see below), whose sum is σ = 981146880. Its totient is φ = 480934080.

The previous prime is 728616253. The next prime is 728616283. The reversal of 728616279 is 972616827.

It is not a de Polignac number, because 728616279 - 2¹³ = 728608087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728616299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170094 + ... + 174324.

It is an arithmetic number, because the mean of its divisors is an integer number (61321680).

Almost surely, 2^728616279 is an apocalyptic number.

728616279 is a deficient number, since it is larger than the sum of its proper divisors (252530601).

728616279 is a wasteful number, since it uses less digits than its factorization.

728616279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4790.

The product of its digits is 508032, while the sum is 48.

The square root of 728616279 is about 26992.8931202270. The cubic root of 728616279 is about 899.8420624092.

The spelling of 728616279 in words is "seven hundred twenty-eight million, six hundred sixteen thousand, two hundred seventy-nine".