79280000 has 80 divisors (see below), whose sum is σ = 197561760. Its totient is φ = 31680000.

The previous prime is 79279979. The next prime is 79280041. The reversal of 79280000 is 8297.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 79505 + ... + 80495.

It is an arithmetic number, because the mean of its divisors is an integer number (2469522).

Almost surely, 2^79280000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79280000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98780880).

79280000 is an abundant number, since it is smaller than the sum of its proper divisors (118281760).

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

79280000 is an frugal number, since it uses more digits than its factorization.

79280000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 79280000 is about 8903.9317158208. The cubic root of 79280000 is about 429.5903797029.

Adding to 79280000 its reverse (8297), we get a palindrome (79288297).

The spelling of 79280000 in words is "seventy-nine million, two hundred eighty thousand".