79730 has 32 divisors (see below), whose sum is σ = 176256. Its totient is φ = 25344.

The previous prime is 79699. The next prime is 79757. The reversal of 79730 is 3797.

It is a happy number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 79730.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1157 + ... + 1223.

It is an arithmetic number, because the mean of its divisors is an integer number (5508).

2⁷⁹⁷³⁰ is an apocalyptic number.

79730 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

79730 is an abundant number, since it is smaller than the sum of its proper divisors (96526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88128).

79730 is a wasteful number, since it uses less digits than its factorization.

79730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98.

The product of its (nonzero) digits is 1323, while the sum is 26.

The square root of 79730 is about 282.3650119969. The cubic root of 79730 is about 43.0401643835.

The spelling of 79730 in words is "seventy-nine thousand, seven hundred thirty".