728614834 has 4 divisors (see below), whose sum is σ = 1092922254. Its totient is φ = 364307416.

The previous prime is 728614829. The next prime is 728614837. The reversal of 728614834 is 438416827.

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., 642774609 + 85840225 = 25353^2 + 9265^2 .

It is not an unprimeable number, because it can be changed into a prime (728614837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182153707 + ... + 182153710.

Almost surely, 2^728614834 is an apocalyptic number.

728614834 is a deficient number, since it is larger than the sum of its proper divisors (364307420).

728614834 is a wasteful number, since it uses less digits than its factorization.

728614834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364307419.

The product of its digits is 258048, while the sum is 43.

The square root of 728614834 is about 26992.8663539091. The cubic root of 728614834 is about 899.8414675498.

The spelling of 728614834 in words is "seven hundred twenty-eight million, six hundred fourteen thousand, eight hundred thirty-four".