79728337 has 16 divisors (see below), whose sum is σ = 90069840. Its totient is φ = 70060032.

The previous prime is 79728329. The next prime is 79728347. The reversal of 79728337 is 73382797.

It can be written as a sum of positive squares in 8 ways, for example, as 10439361 + 69288976 = 3231^2 + 8324^2 .

It is a cyclic number.

It is not a de Polignac number, because 79728337 - 2³ = 79728329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79728347) 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 in 15 ways as a sum of consecutive naturals, for example, 26073 + ... + 28969.

It is an arithmetic number, because the mean of its divisors is an integer number (5629365).

Almost surely, 2^79728337 is an apocalyptic number.

It is an amenable number.

79728337 is a deficient number, since it is larger than the sum of its proper divisors (10341503).

79728337 is a wasteful number, since it uses less digits than its factorization.

79728337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012.

The product of its digits is 444528, while the sum is 46.

The square root of 79728337 is about 8929.0725722216. The cubic root of 79728337 is about 430.3986513901.

The spelling of 79728337 in words is "seventy-nine million, seven hundred twenty-eight thousand, three hundred thirty-seven".