80518047 has 8 divisors (see below), whose sum is σ = 108869760. Its totient is φ = 52922520.

The previous prime is 80518027. The next prime is 80518049. The reversal of 80518047 is 74081508.

It is a happy number.

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

It is not a de Polignac number, because 80518047 - 2⁷ = 80517919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80517999 and 80518017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80518049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188797 + ... + 189222.

It is an arithmetic number, because the mean of its divisors is an integer number (13608720).

Almost surely, 2^80518047 is an apocalyptic number.

80518047 is a deficient number, since it is larger than the sum of its proper divisors (28351713).

80518047 is a wasteful number, since it uses less digits than its factorization.

80518047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378093.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 80518047 is about 8973.1848860926. The cubic root of 80518047 is about 431.8150196119.

The spelling of 80518047 in words is "eighty million, five hundred eighteen thousand, forty-seven".