87959629 has 2 divisors, whose sum is σ = 87959630. Its totient is φ = 87959628.

The previous prime is 87959623. The next prime is 87959633. The reversal of 87959629 is 92695978.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86955625 + 1004004 = 9325^2 + 1002^2 .

It is a cyclic number.

It is not a de Polignac number, because 87959629 - 2²¹ = 85862477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87959629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87959623) 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, 43979814 + 43979815.

It is an arithmetic number, because the mean of its divisors is an integer number (43979815).

Almost surely, 2^87959629 is an apocalyptic number.

It is an amenable number.

87959629 is a deficient number, since it is larger than the sum of its proper divisors (1).

87959629 is an equidigital number, since it uses as much as digits as its factorization.

87959629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 55.

The square root of 87959629 is about 9378.6794912717. The cubic root of 87959629 is about 444.7279893005.

It can be divided in two parts, 87959 and 629, that added together give a palindrome (88588).

The spelling of 87959629 in words is "eighty-seven million, nine hundred fifty-nine thousand, six hundred twenty-nine".