79143680 has 216 divisors, whose sum is σ = 241404576. Its totient is φ = 24330240.

The previous prime is 79143671. The next prime is 79143707. The reversal of 79143680 is 8634197.

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 23 ways as a sum of consecutive naturals, for example, 1084124 + ... + 1084196.

Almost surely, 2^79143680 is an apocalyptic number.

79143680 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79143680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120702288).

79143680 is an abundant number, since it is smaller than the sum of its proper divisors (162260896).

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

79143680 is a wasteful number, since it uses less digits than its factorization.

79143680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 79143680 is about 8896.2733770945. The cubic root of 79143680 is about 429.3440150972.

The spelling of 79143680 in words is "seventy-nine million, one hundred forty-three thousand, six hundred eighty".