80438987 has 2 divisors, whose sum is σ = 80438988. Its totient is φ = 80438986.

The previous prime is 80438971. The next prime is 80439013. The reversal of 80438987 is 78983408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80438987 - 2⁴ = 80438971 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80438947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40219493 + 40219494.

It is an arithmetic number, because the mean of its divisors is an integer number (40219494).

Almost surely, 2^80438987 is an apocalyptic number.

80438987 is a deficient number, since it is larger than the sum of its proper divisors (1).

80438987 is an equidigital number, since it uses as much as digits as its factorization.

80438987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 80438987 is about 8968.7784564008. The cubic root of 80438987 is about 431.6736414715.

The spelling of 80438987 in words is "eighty million, four hundred thirty-eight thousand, nine hundred eighty-seven".