79738 has 4 divisors (see below), whose sum is σ = 119610. Its totient is φ = 39868.

The previous prime is 79699. The next prime is 79757. The reversal of 79738 is 83797.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83797 = 7 ⋅11971.

It can be written as a sum of positive squares in only one way, i.e., 66049 + 13689 = 257^2 + 117^2 .

It is a plaindrome in base 16.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19933 + ... + 19936.

2⁷⁹⁷³⁸ is an apocalyptic number.

79738 is a deficient number, since it is larger than the sum of its proper divisors (39872).

79738 is a wasteful number, since it uses less digits than its factorization.

79738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39871.

The product of its digits is 10584, while the sum is 34.

The square root of 79738 is about 282.3791777026. The cubic root of 79738 is about 43.0416038659.

The spelling of 79738 in words is "seventy-nine thousand, seven hundred thirty-eight".