87676571 has 2 divisors, whose sum is σ = 87676572. Its totient is φ = 87676570.

The previous prime is 87676499. The next prime is 87676591. The reversal of 87676571 is 17567678.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87676571 - 2²⁶ = 20567707 is a prime.

It is a super-2 number, since 2×87676571² = 15374362204636082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87676591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43838285 + 43838286.

It is an arithmetic number, because the mean of its divisors is an integer number (43838286).

Almost surely, 2^87676571 is an apocalyptic number.

87676571 is a deficient number, since it is larger than the sum of its proper divisors (1).

87676571 is an equidigital number, since it uses as much as digits as its factorization.

87676571 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 87676571 is about 9363.5768272600. The cubic root of 87676571 is about 444.2504251733.

The spelling of 87676571 in words is "eighty-seven million, six hundred seventy-six thousand, five hundred seventy-one".