85862665 has 16 divisors (see below), whose sum is σ = 124682112. Its totient is φ = 55413504.

The previous prime is 85862639. The next prime is 85862683. The reversal of 85862665 is 56626858.

It is a cyclic number.

It is not a de Polignac number, because 85862665 - 2⁷ = 85862537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 71559 + ... + 72748.

It is an arithmetic number, because the mean of its divisors is an integer number (7792632).

Almost surely, 2^85862665 is an apocalyptic number.

85862665 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

85862665 is a deficient number, since it is larger than the sum of its proper divisors (38819447).

85862665 is a wasteful number, since it uses less digits than its factorization.

85862665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144336.

The product of its digits is 691200, while the sum is 46.

The square root of 85862665 is about 9266.2109300404. The cubic root of 85862665 is about 441.1654108408.

The spelling of 85862665 in words is "eighty-five million, eight hundred sixty-two thousand, six hundred sixty-five".