87682571 has 2 divisors, whose sum is σ = 87682572. Its totient is φ = 87682570.

The previous prime is 87682513. The next prime is 87682597. The reversal of 87682571 is 17528678.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87682571 - 2²² = 83488267 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (87682171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43841285 + 43841286.

It is an arithmetic number, because the mean of its divisors is an integer number (43841286).

Almost surely, 2^87682571 is an apocalyptic number.

87682571 is a deficient number, since it is larger than the sum of its proper divisors (1).

87682571 is an equidigital number, since it uses as much as digits as its factorization.

87682571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 44.

The square root of 87682571 is about 9363.8972121655. The cubic root of 87682571 is about 444.2605587879.

The spelling of 87682571 in words is "eighty-seven million, six hundred eighty-two thousand, five hundred seventy-one".