87109339 has 2 divisors, whose sum is σ = 87109340. Its totient is φ = 87109338.

The previous prime is 87109291. The next prime is 87109391. The reversal of 87109339 is 93390178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87109339 - 2²³ = 78720731 is a prime.

It is not a weakly prime, because it can be changed into another prime (87103339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43554669 + 43554670.

It is an arithmetic number, because the mean of its divisors is an integer number (43554670).

Almost surely, 2^87109339 is an apocalyptic number.

87109339 is a deficient number, since it is larger than the sum of its proper divisors (1).

87109339 is an equidigital number, since it uses as much as digits as its factorization.

87109339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 87109339 is about 9333.2383983267. The cubic root of 87109339 is about 443.2903114011.

The spelling of 87109339 in words is "eighty-seven million, one hundred nine thousand, three hundred thirty-nine".