80889047 has 4 divisors (see below), whose sum is σ = 81479616. Its totient is φ = 80298480.

The previous prime is 80889031. The next prime is 80889079. The reversal of 80889047 is 74098808.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80889047 - 2⁴ = 80889031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80888989 and 80889007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80889007) 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 3 ways as a sum of consecutive naturals, for example, 295079 + ... + 295352.

It is an arithmetic number, because the mean of its divisors is an integer number (20369904).

Almost surely, 2^80889047 is an apocalyptic number.

80889047 is a deficient number, since it is larger than the sum of its proper divisors (590569).

80889047 is a wasteful number, since it uses less digits than its factorization.

80889047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590568.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 80889047 is about 8993.8338321319. The cubic root of 80889047 is about 432.4772228975.

The spelling of 80889047 in words is "eighty million, eight hundred eighty-nine thousand, forty-seven".