728637562 has 8 divisors (see below), whose sum is σ = 1140476256. Its totient is φ = 348478812.

The previous prime is 728637541. The next prime is 728637563. The reversal of 728637562 is 265736827.

728637562 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 15839947 = 728637562 / (7 + 2 + 8 + 6 + 3 + 7 + 5 + 6 + 2).

It is not an unprimeable number, because it can be changed into a prime (728637563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7919928 + ... + 7920019.

It is an arithmetic number, because the mean of its divisors is an integer number (142559532).

Almost surely, 2^728637562 is an apocalyptic number.

728637562 is a deficient number, since it is larger than the sum of its proper divisors (411838694).

728637562 is a wasteful number, since it uses less digits than its factorization.

728637562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15839972.

The product of its digits is 846720, while the sum is 46.

The square root of 728637562 is about 26993.2873507470. The cubic root of 728637562 is about 899.8508238349.

The spelling of 728637562 in words is "seven hundred twenty-eight million, six hundred thirty-seven thousand, five hundred sixty-two".