80016389 has 2 divisors, whose sum is σ = 80016390. Its totient is φ = 80016388.

The previous prime is 80016383. The next prime is 80016403. The reversal of 80016389 is 98361008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80013025 + 3364 = 8945^2 + 58^2 .

It is a cyclic number.

It is not a de Polignac number, because 80016389 - 2¹⁶ = 79950853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80016383) by changing a digit.

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 as a sum of consecutive naturals, namely, 40008194 + 40008195.

It is an arithmetic number, because the mean of its divisors is an integer number (40008195).

Almost surely, 2^80016389 is an apocalyptic number.

It is an amenable number.

80016389 is a deficient number, since it is larger than the sum of its proper divisors (1).

80016389 is an equidigital number, since it uses as much as digits as its factorization.

80016389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 80016389 is about 8945.1880360337. The cubic root of 80016389 is about 430.9163601891.

The spelling of 80016389 in words is "eighty million, sixteen thousand, three hundred eighty-nine".