80688887 has 2 divisors, whose sum is σ = 80688888. Its totient is φ = 80688886.

The previous prime is 80688857. The next prime is 80688901. The reversal of 80688887 is 78888608.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80688887 - 2¹⁴ = 80672503 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80688827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40344443 + 40344444.

It is an arithmetic number, because the mean of its divisors is an integer number (40344444).

Almost surely, 2^80688887 is an apocalyptic number.

80688887 is a deficient number, since it is larger than the sum of its proper divisors (1).

80688887 is an equidigital number, since it uses as much as digits as its factorization.

80688887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1376256, while the sum is 53.

The square root of 80688887 is about 8982.6993159072. The cubic root of 80688887 is about 432.1202065322.

The spelling of 80688887 in words is "eighty million, six hundred eighty-eight thousand, eight hundred eighty-seven".