80867687 has 2 divisors, whose sum is σ = 80867688. Its totient is φ = 80867686.

The previous prime is 80867663. The next prime is 80867693. The reversal of 80867687 is 78676808.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80867687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80867617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40433843 + 40433844.

It is an arithmetic number, because the mean of its divisors is an integer number (40433844).

Almost surely, 2^80867687 is an apocalyptic number.

80867687 is a deficient number, since it is larger than the sum of its proper divisors (1).

80867687 is an equidigital number, since it uses as much as digits as its factorization.

80867687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 50.

The square root of 80867687 is about 8992.6462734837. The cubic root of 80867687 is about 432.4391521201.

The spelling of 80867687 in words is "eighty million, eight hundred sixty-seven thousand, six hundred eighty-seven".