79438153 has 4 divisors (see below), whose sum is σ = 79500240. Its totient is φ = 79376068.

The previous prime is 79438141. The next prime is 79438169. The reversal of 79438153 is 35183497.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35183497 = 19 ⋅1851763.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79438153 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79438193) 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 3 ways as a sum of consecutive naturals, for example, 29083 + ... + 31696.

It is an arithmetic number, because the mean of its divisors is an integer number (19875060).

Almost surely, 2^79438153 is an apocalyptic number.

It is an amenable number.

79438153 is a deficient number, since it is larger than the sum of its proper divisors (62087).

79438153 is a wasteful number, since it uses less digits than its factorization.

79438153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62086.

The product of its digits is 90720, while the sum is 40.

The square root of 79438153 is about 8912.8083677368. The cubic root of 79438153 is about 429.8758484196.

The spelling of 79438153 in words is "seventy-nine million, four hundred thirty-eight thousand, one hundred fifty-three".