78980143 has 8 divisors (see below), whose sum is σ = 86231376. Its totient is φ = 71740800.

The previous prime is 78980141. The next prime is 78980221. The reversal of 78980143 is 34108987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78980143 - 2¹ = 78980141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78980096 and 78980105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78980141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16503 + ... + 20743.

It is an arithmetic number, because the mean of its divisors is an integer number (10778922).

Almost surely, 2^78980143 is an apocalyptic number.

78980143 is a deficient number, since it is larger than the sum of its proper divisors (7251233).

78980143 is a wasteful number, since it uses less digits than its factorization.

78980143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5945.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 78980143 is about 8887.0773035909. The cubic root of 78980143 is about 429.0480889650.

The spelling of 78980143 in words is "seventy-eight million, nine hundred eighty thousand, one hundred forty-three".