80663887 has 2 divisors, whose sum is σ = 80663888. Its totient is φ = 80663886.

The previous prime is 80663867. The next prime is 80663893. The reversal of 80663887 is 78836608.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80663887 - 2¹⁹ = 80139599 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 (80663857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40331943 + 40331944.

It is an arithmetic number, because the mean of its divisors is an integer number (40331944).

Almost surely, 2^80663887 is an apocalyptic number.

80663887 is a deficient number, since it is larger than the sum of its proper divisors (1).

80663887 is an equidigital number, since it uses as much as digits as its factorization.

80663887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 80663887 is about 8981.3076442131. The cubic root of 80663887 is about 432.0755736983.

The spelling of 80663887 in words is "eighty million, six hundred sixty-three thousand, eight hundred eighty-seven".