87226771 has 2 divisors, whose sum is σ = 87226772. Its totient is φ = 87226770.

The previous prime is 87226759. The next prime is 87226801. The reversal of 87226771 is 17762278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87226771 - 2⁹ = 87226259 is a prime.

It is not a weakly prime, because it can be changed into another prime (87224771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43613385 + 43613386.

It is an arithmetic number, because the mean of its divisors is an integer number (43613386).

Almost surely, 2^87226771 is an apocalyptic number.

87226771 is a deficient number, since it is larger than the sum of its proper divisors (1).

87226771 is an equidigital number, since it uses as much as digits as its factorization.

87226771 is an odious number, because the sum of its binary digits is odd.

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

The square root of 87226771 is about 9339.5273435008. The cubic root of 87226771 is about 443.4894216746.

The spelling of 87226771 in words is "eighty-seven million, two hundred twenty-six thousand, seven hundred seventy-one".