87266087 has 2 divisors, whose sum is σ = 87266088. Its totient is φ = 87266086.

The previous prime is 87266063. The next prime is 87266099. The reversal of 87266087 is 78066278.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87266087 - 2¹² = 87261991 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 (87266027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43633043 + 43633044.

It is an arithmetic number, because the mean of its divisors is an integer number (43633044).

Almost surely, 2^87266087 is an apocalyptic number.

87266087 is a deficient number, since it is larger than the sum of its proper divisors (1).

87266087 is an equidigital number, since it uses as much as digits as its factorization.

87266087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 87266087 is about 9341.6319238129. The cubic root of 87266087 is about 443.5560434654.

The spelling of 87266087 in words is "eighty-seven million, two hundred sixty-six thousand, eighty-seven".