87316147 has 2 divisors, whose sum is σ = 87316148. Its totient is φ = 87316146.

The previous prime is 87316139. The next prime is 87316169. The reversal of 87316147 is 74161378.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87316147 - 2³ = 87316139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87316127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43658073 + 43658074.

It is an arithmetic number, because the mean of its divisors is an integer number (43658074).

Almost surely, 2^87316147 is an apocalyptic number.

87316147 is a deficient number, since it is larger than the sum of its proper divisors (1).

87316147 is an equidigital number, since it uses as much as digits as its factorization.

87316147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 37.

The square root of 87316147 is about 9344.3109430284. The cubic root of 87316147 is about 443.6408422374.

It can be divided in two parts, 8731 and 6147, that added together give a triangular number (14878 = T₁₇₂).

The spelling of 87316147 in words is "eighty-seven million, three hundred sixteen thousand, one hundred forty-seven".