80387987 has 2 divisors, whose sum is σ = 80387988. Its totient is φ = 80387986.

The previous prime is 80387969. The next prime is 80387999. The reversal of 80387987 is 78978308.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80387987 - 2¹⁰ = 80386963 is a prime.

It is not a weakly prime, because it can be changed into another prime (80387927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40193993 + 40193994.

It is an arithmetic number, because the mean of its divisors is an integer number (40193994).

Almost surely, 2^80387987 is an apocalyptic number.

80387987 is a deficient number, since it is larger than the sum of its proper divisors (1).

80387987 is an equidigital number, since it uses as much as digits as its factorization.

80387987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 80387987 is about 8965.9348090425. The cubic root of 80387987 is about 431.5823921453.

The spelling of 80387987 in words is "eighty million, three hundred eighty-seven thousand, nine hundred eighty-seven".