87037217 has 2 divisors, whose sum is σ = 87037218. Its totient is φ = 87037216.

The previous prime is 87037201. The next prime is 87037259. The reversal of 87037217 is 71273078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86192656 + 844561 = 9284^2 + 919^2 .

It is a cyclic number.

It is not a de Polignac number, because 87037217 - 2⁴ = 87037201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87037277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43518608 + 43518609.

It is an arithmetic number, because the mean of its divisors is an integer number (43518609).

Almost surely, 2^87037217 is an apocalyptic number.

It is an amenable number.

87037217 is a deficient number, since it is larger than the sum of its proper divisors (1).

87037217 is an equidigital number, since it uses as much as digits as its factorization.

87037217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 87037217 is about 9329.3738803845. The cubic root of 87037217 is about 443.1679371846.

The spelling of 87037217 in words is "eighty-seven million, thirty-seven thousand, two hundred seventeen".