87694771 has 2 divisors, whose sum is σ = 87694772. Its totient is φ = 87694770.

The previous prime is 87694769. The next prime is 87694781. The reversal of 87694771 is 17749678.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87694771 - 2¹ = 87694769 is a prime.

Together with 87694769, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (87694741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43847385 + 43847386.

It is an arithmetic number, because the mean of its divisors is an integer number (43847386).

Almost surely, 2^87694771 is an apocalyptic number.

87694771 is a deficient number, since it is larger than the sum of its proper divisors (1).

87694771 is an equidigital number, since it uses as much as digits as its factorization.

87694771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 592704, while the sum is 49.

The square root of 87694771 is about 9364.5486276702. The cubic root of 87694771 is about 444.2811623788.

The spelling of 87694771 in words is "eighty-seven million, six hundred ninety-four thousand, seven hundred seventy-one".