87554317 has 2 divisors, whose sum is σ = 87554318. Its totient is φ = 87554316.

The previous prime is 87554297. The next prime is 87554333. The reversal of 87554317 is 71345578.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53670276 + 33884041 = 7326^2 + 5821^2 .

It is a cyclic number.

It is not a de Polignac number, because 87554317 - 2⁷ = 87554189 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87554317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87554387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43777158 + 43777159.

It is an arithmetic number, because the mean of its divisors is an integer number (43777159).

Almost surely, 2^87554317 is an apocalyptic number.

It is an amenable number.

87554317 is a deficient number, since it is larger than the sum of its proper divisors (1).

87554317 is an equidigital number, since it uses as much as digits as its factorization.

87554317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117600, while the sum is 40.

The square root of 87554317 is about 9357.0463822726. The cubic root of 87554317 is about 444.0438452629.

The spelling of 87554317 in words is "eighty-seven million, five hundred fifty-four thousand, three hundred seventeen".