79857203 has 4 divisors (see below), whose sum is σ = 80603640. Its totient is φ = 79110768.

The previous prime is 79857187. The next prime is 79857221. The reversal of 79857203 is 30275897.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79857203 - 2⁴ = 79857187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79857263) 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, 373058 + ... + 373271.

It is an arithmetic number, because the mean of its divisors is an integer number (20150910).

Almost surely, 2^79857203 is an apocalyptic number.

79857203 is a deficient number, since it is larger than the sum of its proper divisors (746437).

79857203 is a wasteful number, since it uses less digits than its factorization.

79857203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746436.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 79857203 is about 8936.2857496837. The cubic root of 79857203 is about 430.6304129746.

The spelling of 79857203 in words is "seventy-nine million, eight hundred fifty-seven thousand, two hundred three".