87560971 has 2 divisors, whose sum is σ = 87560972. Its totient is φ = 87560970.

The previous prime is 87560969. The next prime is 87560983. The reversal of 87560971 is 17906578.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87560971 - 2¹ = 87560969 is a prime.

Together with 87560969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (87569971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43780485 + 43780486.

It is an arithmetic number, because the mean of its divisors is an integer number (43780486).

Almost surely, 2^87560971 is an apocalyptic number.

87560971 is a deficient number, since it is larger than the sum of its proper divisors (1).

87560971 is an equidigital number, since it uses as much as digits as its factorization.

87560971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 87560971 is about 9357.4019364351. The cubic root of 87560971 is about 444.0550938722.

The spelling of 87560971 in words is "eighty-seven million, five hundred sixty thousand, nine hundred seventy-one".