85796665 has 12 divisors (see below), whose sum is σ = 105083244. Its totient is φ = 67223936.

The previous prime is 85796663. The next prime is 85796677. The reversal of 85796665 is 56669758.

It can be written as a sum of positive squares in 6 ways, for example, as 8690704 + 77105961 = 2948^2 + 8781^2 .

It is not a de Polignac number, because 85796665 - 2¹ = 85796663 is a prime.

It is a super-2 number, since 2×85796665² = 14722135450244450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85796663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150501 + ... + 151069.

It is an arithmetic number, because the mean of its divisors is an integer number (8756937).

Almost surely, 2^85796665 is an apocalyptic number.

It is an amenable number.

85796665 is a deficient number, since it is larger than the sum of its proper divisors (19286579).

85796665 is an frugal number, since it uses more digits than its factorization.

85796665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196 (or 627 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 52.

The square root of 85796665 is about 9262.6489191807. The cubic root of 85796665 is about 441.0523450874.

The spelling of 85796665 in words is "eighty-five million, seven hundred ninety-six thousand, six hundred sixty-five".