79725 has 12 divisors (see below), whose sum is σ = 131936. Its totient is φ = 42480.
The previous prime is 79699. The next prime is 79757. The reversal of 79725 is 52797.
It is a happy number.
It is not a de Polignac number, because 79725 - 25 = 79693 is a prime.
It is a Duffinian number.
79725 is a lucky number.
It is a plaindrome in base 8.
It is a junction number, because it is equal to n+sod(n) for n = 79692 and 79701.
It is a congruent number.
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 in 11 ways as a sum of consecutive naturals, for example, 457 + ... + 606.
279725 is an apocalyptic number.
79725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.
It is an amenable number.
79725 is a deficient number, since it is larger than the sum of its proper divisors (52211).
79725 is a wasteful number, since it uses less digits than its factorization.
79725 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1076 (or 1071 counting only the distinct ones).
The product of its digits is 4410, while the sum is 30.
The square root of 79725 is about 282.3561580699. The cubic root of 79725 is about 43.0392646581.
It can be divided in two parts, 79 and 725, that multiplied together give a palindrome (57275).
The spelling of 79725 in words is "seventy-nine thousand, seven hundred twenty-five".
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