87000079 has 2 divisors, whose sum is σ = 87000080. Its totient is φ = 87000078.

The previous prime is 87000047. The next prime is 87000119. The reversal of 87000079 is 97000078.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87000079 - 2⁵ = 87000047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87000079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87000479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43500039 + 43500040.

It is an arithmetic number, because the mean of its divisors is an integer number (43500040).

Almost surely, 2^87000079 is an apocalyptic number.

87000079 is a deficient number, since it is larger than the sum of its proper divisors (1).

87000079 is an equidigital number, since it uses as much as digits as its factorization.

87000079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 87000079 is about 9327.3832879324. The cubic root of 87000079 is about 443.1048962892.

Subtracting 87000079 from its reverse (97000078), we obtain a palindrome (9999999).

The spelling of 87000079 in words is "eighty-seven million, seventy-nine", and thus it is an aban number and an uban number.