80000389 has 12 divisors (see below), whose sum is σ = 95333868. Its totient is φ = 66897600.

The previous prime is 80000387. The next prime is 80000407. The reversal of 80000389 is 98300008.

It can be written as a sum of positive squares in 2 ways, for example, as 24423364 + 55577025 = 4942^2 + 7455^2 .

It is not a de Polignac number, because 80000389 - 2¹ = 80000387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80000387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17902 + ... + 21919.

It is an arithmetic number, because the mean of its divisors is an integer number (7944489).

Almost surely, 2^80000389 is an apocalyptic number.

It is an amenable number.

80000389 is a deficient number, since it is larger than the sum of its proper divisors (15333479).

80000389 is a wasteful number, since it uses less digits than its factorization.

80000389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39876 (or 39869 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 80000389 is about 8944.2936557338. The cubic root of 80000389 is about 430.8876364012.

The spelling of 80000389 in words is "eighty million, three hundred eighty-nine", and thus it is an aban number.