87257167 has 2 divisors, whose sum is σ = 87257168. Its totient is φ = 87257166.

The previous prime is 87257129. The next prime is 87257197. The reversal of 87257167 is 76175278.

87257167 is nontrivially palindromic in base 14.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87257167 is a prime.

It is a super-2 number, since 2×87257167² = 15227626385731778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87257117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43628583 + 43628584.

It is an arithmetic number, because the mean of its divisors is an integer number (43628584).

Almost surely, 2^87257167 is an apocalyptic number.

87257167 is a deficient number, since it is larger than the sum of its proper divisors (1).

87257167 is an equidigital number, since it uses as much as digits as its factorization.

87257167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 164640, while the sum is 43.

The square root of 87257167 is about 9341.1544789710. The cubic root of 87257167 is about 443.5409300925.

The spelling of 87257167 in words is "eighty-seven million, two hundred fifty-seven thousand, one hundred sixty-seven".