87409271 has 2 divisors, whose sum is σ = 87409272. Its totient is φ = 87409270.

The previous prime is 87409261. The next prime is 87409337. The reversal of 87409271 is 17290478.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87409271 - 2¹⁰ = 87408247 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 (87409261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43704635 + 43704636.

It is an arithmetic number, because the mean of its divisors is an integer number (43704636).

Almost surely, 2^87409271 is an apocalyptic number.

87409271 is a deficient number, since it is larger than the sum of its proper divisors (1).

87409271 is an equidigital number, since it uses as much as digits as its factorization.

87409271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 87409271 is about 9349.2925400802. The cubic root of 87409271 is about 443.7985027722.

The spelling of 87409271 in words is "eighty-seven million, four hundred nine thousand, two hundred seventy-one".