87249167 has 2 divisors, whose sum is σ = 87249168. Its totient is φ = 87249166.

The previous prime is 87249163. The next prime is 87249233. The reversal of 87249167 is 76194278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87249167 - 2² = 87249163 is a prime.

It is a super-2 number, since 2×87249167² = 15224834284387778, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87249161) 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, 43624583 + 43624584.

It is an arithmetic number, because the mean of its divisors is an integer number (43624584).

Almost surely, 2^87249167 is an apocalyptic number.

87249167 is a deficient number, since it is larger than the sum of its proper divisors (1).

87249167 is an equidigital number, since it uses as much as digits as its factorization.

87249167 is an odious number, because the sum of its binary digits is odd.

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

The square root of 87249167 is about 9340.7262565606. The cubic root of 87249167 is about 443.5273746219.

The spelling of 87249167 in words is "eighty-seven million, two hundred forty-nine thousand, one hundred sixty-seven".