86669425 has 12 divisors (see below), whose sum is σ = 107654940. Its totient is φ = 69216320.

The previous prime is 86669423. The next prime is 86669437. The reversal of 86669425 is 52496668.

It can be written as a sum of positive squares in 6 ways, for example, as 31449664 + 55219761 = 5608^2 + 7431^2 .

It is not a de Polignac number, because 86669425 - 2¹ = 86669423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86669423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13671 + ... + 18979.

It is an arithmetic number, because the mean of its divisors is an integer number (8971245).

Almost surely, 2^86669425 is an apocalyptic number.

It is an amenable number.

86669425 is a deficient number, since it is larger than the sum of its proper divisors (20985515).

86669425 is a wasteful number, since it uses less digits than its factorization.

86669425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5972 (or 5967 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 86669425 is about 9309.6415075985. The cubic root of 86669425 is about 442.5428262465.

The spelling of 86669425 in words is "eighty-six million, six hundred sixty-nine thousand, four hundred twenty-five".