87726271 has 2 divisors, whose sum is σ = 87726272. Its totient is φ = 87726270.

The previous prime is 87726241. The next prime is 87726329. The reversal of 87726271 is 17262778.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87726271 - 2²³ = 79337663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87726241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43863135 + 43863136.

It is an arithmetic number, because the mean of its divisors is an integer number (43863136).

Almost surely, 2^87726271 is an apocalyptic number.

87726271 is a deficient number, since it is larger than the sum of its proper divisors (1).

87726271 is an equidigital number, since it uses as much as digits as its factorization.

87726271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65856, while the sum is 40.

The square root of 87726271 is about 9366.2303516409. The cubic root of 87726271 is about 444.3343513399.

The spelling of 87726271 in words is "eighty-seven million, seven hundred twenty-six thousand, two hundred seventy-one".