87471701 has 2 divisors, whose sum is σ = 87471702. Its totient is φ = 87471700.

The previous prime is 87471667. The next prime is 87471721. The reversal of 87471701 is 10717478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87142225 + 329476 = 9335^2 + 574^2 .

It is a cyclic number.

It is not a de Polignac number, because 87471701 - 2¹⁸ = 87209557 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_5078924 and since 87471701 and 5078924 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87471721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43735850 + 43735851.

It is an arithmetic number, because the mean of its divisors is an integer number (43735851).

Almost surely, 2^87471701 is an apocalyptic number.

It is an amenable number.

87471701 is a deficient number, since it is larger than the sum of its proper divisors (1).

87471701 is an equidigital number, since it uses as much as digits as its factorization.

87471701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10976, while the sum is 35.

The square root of 87471701 is about 9352.6306994343. The cubic root of 87471701 is about 443.9041351482.

The spelling of 87471701 in words is "eighty-seven million, four hundred seventy-one thousand, seven hundred one".