87539063 has 2 divisors, whose sum is σ = 87539064. Its totient is φ = 87539062.

The previous prime is 87539057. The next prime is 87539107. The reversal of 87539063 is 36093578.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87539063 - 2⁶ = 87538999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87539063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87539363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43769531 + 43769532.

It is an arithmetic number, because the mean of its divisors is an integer number (43769532).

Almost surely, 2^87539063 is an apocalyptic number.

87539063 is a deficient number, since it is larger than the sum of its proper divisors (1).

87539063 is an equidigital number, since it uses as much as digits as its factorization.

87539063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 87539063 is about 9356.2312391261. The cubic root of 87539063 is about 444.0180561740.

The spelling of 87539063 in words is "eighty-seven million, five hundred thirty-nine thousand, sixty-three".