87676817 has 2 divisors, whose sum is σ = 87676818. Its totient is φ = 87676816.

The previous prime is 87676789. The next prime is 87676843. The reversal of 87676817 is 71867678.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49434961 + 38241856 = 7031^2 + 6184^2 .

It is a cyclic number.

It is not a de Polignac number, because 87676817 - 2⁶ = 87676753 is a prime.

It is not a weakly prime, because it can be changed into another prime (87676867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43838408 + 43838409.

It is an arithmetic number, because the mean of its divisors is an integer number (43838409).

Almost surely, 2^87676817 is an apocalyptic number.

It is an amenable number.

87676817 is a deficient number, since it is larger than the sum of its proper divisors (1).

87676817 is an equidigital number, since it uses as much as digits as its factorization.

87676817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 790272, while the sum is 50.

The square root of 87676817 is about 9363.5899632566. The cubic root of 87676817 is about 444.2508406606.

The spelling of 87676817 in words is "eighty-seven million, six hundred seventy-six thousand, eight hundred seventeen".