86607973 has 2 divisors, whose sum is σ = 86607974. Its totient is φ = 86607972.

The previous prime is 86607971. The next prime is 86608051. The reversal of 86607973 is 37970668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77739489 + 8868484 = 8817^2 + 2978^2 .

It is a cyclic number.

It is not a de Polignac number, because 86607973 - 2¹ = 86607971 is a prime.

Together with 86607971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86607971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43303986 + 43303987.

It is an arithmetic number, because the mean of its divisors is an integer number (43303987).

Almost surely, 2^86607973 is an apocalyptic number.

It is an amenable number.

86607973 is a deficient number, since it is larger than the sum of its proper divisors (1).

86607973 is an equidigital number, since it uses as much as digits as its factorization.

86607973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 86607973 is about 9306.3404730324. The cubic root of 86607973 is about 442.4382081463.

The spelling of 86607973 in words is "eighty-six million, six hundred seven thousand, nine hundred seventy-three".