87147959 has 2 divisors, whose sum is σ = 87147960. Its totient is φ = 87147958.

The previous prime is 87147947. The next prime is 87148021. The reversal of 87147959 is 95974178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87147959 - 2⁸ = 87147703 is a 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 (87147659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43573979 + 43573980.

It is an arithmetic number, because the mean of its divisors is an integer number (43573980).

Almost surely, 2^87147959 is an apocalyptic number.

87147959 is a deficient number, since it is larger than the sum of its proper divisors (1).

87147959 is an equidigital number, since it uses as much as digits as its factorization.

87147959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 50.

The square root of 87147959 is about 9335.3071186758. The cubic root of 87147959 is about 443.3558127684.

The spelling of 87147959 in words is "eighty-seven million, one hundred forty-seven thousand, nine hundred fifty-nine".