87488641 has 2 divisors, whose sum is σ = 87488642. Its totient is φ = 87488640.

The previous prime is 87488593. The next prime is 87488651. The reversal of 87488641 is 14688478.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53802225 + 33686416 = 7335^2 + 5804^2 .

It is a cyclic number.

It is not a de Polignac number, because 87488641 - 2¹¹ = 87486593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87488591 and 87488600.

It is not a weakly prime, because it can be changed into another prime (87488651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43744320 + 43744321.

It is an arithmetic number, because the mean of its divisors is an integer number (43744321).

Almost surely, 2^87488641 is an apocalyptic number.

It is an amenable number.

87488641 is a deficient number, since it is larger than the sum of its proper divisors (1).

87488641 is an equidigital number, since it uses as much as digits as its factorization.

87488641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 344064, while the sum is 46.

The square root of 87488641 is about 9353.5362831391. The cubic root of 87488641 is about 443.9327891798.

The spelling of 87488641 in words is "eighty-seven million, four hundred eighty-eight thousand, six hundred forty-one".