716221028 has 6 divisors (see below), whose sum is σ = 1253386806. Its totient is φ = 358110512.

The previous prime is 716221021. The next prime is 716221043. The reversal of 716221028 is 820122617.

It can be written as a sum of positive squares in only one way, i.e., 716204644 + 16384 = 26762^2 + 128^2 .

It is not an unprimeable number, because it can be changed into a prime (716221021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89527625 + ... + 89527632.

It is an arithmetic number, because the mean of its divisors is an integer number (208897801).

Almost surely, 2^716221028 is an apocalyptic number.

It is an amenable number.

716221028 is a deficient number, since it is larger than the sum of its proper divisors (537165778).

716221028 is a wasteful number, since it uses less digits than its factorization.

716221028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179055261 (or 179055259 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 716221028 is about 26762.3061039216. The cubic root of 716221028 is about 894.7101328184.

The spelling of 716221028 in words is "seven hundred sixteen million, two hundred twenty-one thousand, twenty-eight".