87756671 has 2 divisors, whose sum is σ = 87756672. Its totient is φ = 87756670.

The previous prime is 87756607. The next prime is 87756689. The reversal of 87756671 is 17665778.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87756671 - 2⁶ = 87756607 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87755671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43878335 + 43878336.

It is an arithmetic number, because the mean of its divisors is an integer number (43878336).

Almost surely, 2^87756671 is an apocalyptic number.

87756671 is a deficient number, since it is larger than the sum of its proper divisors (1).

87756671 is an equidigital number, since it uses as much as digits as its factorization.

87756671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493920, while the sum is 47.

The square root of 87756671 is about 9367.8530624685. The cubic root of 87756671 is about 444.3856708369.

The spelling of 87756671 in words is "eighty-seven million, seven hundred fifty-six thousand, six hundred seventy-one".