87467129 has 2 divisors, whose sum is σ = 87467130. Its totient is φ = 87467128.

The previous prime is 87467099. The next prime is 87467167. The reversal of 87467129 is 92176478.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87459904 + 7225 = 9352^2 + 85^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87467129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87467129.

It is not a weakly prime, because it can be changed into another prime (87467189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43733564 + 43733565.

It is an arithmetic number, because the mean of its divisors is an integer number (43733565).

Almost surely, 2^87467129 is an apocalyptic number.

It is an amenable number.

87467129 is a deficient number, since it is larger than the sum of its proper divisors (1).

87467129 is an equidigital number, since it uses as much as digits as its factorization.

87467129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 44.

The square root of 87467129 is about 9352.3862730321. The cubic root of 87467129 is about 443.8964009704.

The spelling of 87467129 in words is "eighty-seven million, four hundred sixty-seven thousand, one hundred twenty-nine".