80261287 has 2 divisors, whose sum is σ = 80261288. Its totient is φ = 80261286.

The previous prime is 80261213. The next prime is 80261297. The reversal of 80261287 is 78216208.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80261287 - 2¹¹ = 80259239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80261297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40130643 + 40130644.

It is an arithmetic number, because the mean of its divisors is an integer number (40130644).

Almost surely, 2^80261287 is an apocalyptic number.

80261287 is a deficient number, since it is larger than the sum of its proper divisors (1).

80261287 is an equidigital number, since it uses as much as digits as its factorization.

80261287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 80261287 is about 8958.8663903420. The cubic root of 80261287 is about 431.3555330326.

The spelling of 80261287 in words is "eighty million, two hundred sixty-one thousand, two hundred eighty-seven".