87433217 has 2 divisors, whose sum is σ = 87433218. Its totient is φ = 87433216.

The previous prime is 87433201. The next prime is 87433223. The reversal of 87433217 is 71233478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79727041 + 7706176 = 8929^2 + 2776^2 .

It is a cyclic number.

It is not a de Polignac number, because 87433217 - 2⁴ = 87433201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87433267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43716608 + 43716609.

It is an arithmetic number, because the mean of its divisors is an integer number (43716609).

Almost surely, 2^87433217 is an apocalyptic number.

It is an amenable number.

87433217 is a deficient number, since it is larger than the sum of its proper divisors (1).

87433217 is an equidigital number, since it uses as much as digits as its factorization.

87433217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 35.

The square root of 87433217 is about 9350.5730840414. The cubic root of 87433217 is about 443.8390256615.

The spelling of 87433217 in words is "eighty-seven million, four hundred thirty-three thousand, two hundred seventeen".