87064547 has 2 divisors, whose sum is σ = 87064548. Its totient is φ = 87064546.

The previous prime is 87064493. The next prime is 87064553. The reversal of 87064547 is 74546078.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87064547 - 2¹⁸ = 86802403 is a prime.

It is not a weakly prime, because it can be changed into another prime (87064567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43532273 + 43532274.

It is an arithmetic number, because the mean of its divisors is an integer number (43532274).

Almost surely, 2^87064547 is an apocalyptic number.

87064547 is a deficient number, since it is larger than the sum of its proper divisors (1).

87064547 is an equidigital number, since it uses as much as digits as its factorization.

87064547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 87064547 is about 9330.8384939404. The cubic root of 87064547 is about 443.2143177738.

The spelling of 87064547 in words is "eighty-seven million, sixty-four thousand, five hundred forty-seven".