87982541 has 2 divisors, whose sum is σ = 87982542. Its totient is φ = 87982540.

The previous prime is 87982523. The next prime is 87982547. The reversal of 87982541 is 14528978.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87965641 + 16900 = 9379^2 + 130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87982541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87982492 and 87982501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87982547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43991270 + 43991271.

It is an arithmetic number, because the mean of its divisors is an integer number (43991271).

Almost surely, 2^87982541 is an apocalyptic number.

It is an amenable number.

87982541 is a deficient number, since it is larger than the sum of its proper divisors (1).

87982541 is an equidigital number, since it uses as much as digits as its factorization.

87982541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 44.

The square root of 87982541 is about 9379.9009056599. The cubic root of 87982541 is about 444.7666006620.

The spelling of 87982541 in words is "eighty-seven million, nine hundred eighty-two thousand, five hundred forty-one".