86547073 has 2 divisors, whose sum is σ = 86547074. Its totient is φ = 86547072.

The previous prime is 86547067. The next prime is 86547077. The reversal of 86547073 is 37074568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85895824 + 651249 = 9268^2 + 807^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86547073 is a prime.

It is not a weakly prime, because it can be changed into another prime (86547077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43273536 + 43273537.

It is an arithmetic number, because the mean of its divisors is an integer number (43273537).

Almost surely, 2^86547073 is an apocalyptic number.

It is an amenable number.

86547073 is a deficient number, since it is larger than the sum of its proper divisors (1).

86547073 is an equidigital number, since it uses as much as digits as its factorization.

86547073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 86547073 is about 9303.0679348267. The cubic root of 86547073 is about 442.3344809569.

The spelling of 86547073 in words is "eighty-six million, five hundred forty-seven thousand, seventy-three".