87775027 has 2 divisors, whose sum is σ = 87775028. Its totient is φ = 87775026.

The previous prime is 87775021. The next prime is 87775057. The reversal of 87775027 is 72057778.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87775027 is a prime.

It is a super-3 number, since 3×87775027³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (87775021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43887513 + 43887514.

It is an arithmetic number, because the mean of its divisors is an integer number (43887514).

Almost surely, 2^87775027 is an apocalyptic number.

87775027 is a deficient number, since it is larger than the sum of its proper divisors (1).

87775027 is an equidigital number, since it uses as much as digits as its factorization.

87775027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192080, while the sum is 43.

The square root of 87775027 is about 9368.8327447980. The cubic root of 87775027 is about 444.4166526210.

The spelling of 87775027 in words is "eighty-seven million, seven hundred seventy-five thousand, twenty-seven".