85802117 has 4 divisors (see below), whose sum is σ = 85824480. Its totient is φ = 85779756.

The previous prime is 85802099. The next prime is 85802131. The reversal of 85802117 is 71120858.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85802117 - 2¹² = 85798021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85802147) 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 3 ways as a sum of consecutive naturals, for example, 3803 + ... + 13640.

It is an arithmetic number, because the mean of its divisors is an integer number (21456120).

Almost surely, 2^85802117 is an apocalyptic number.

It is an amenable number.

85802117 is a deficient number, since it is larger than the sum of its proper divisors (22363).

85802117 is a wasteful number, since it uses less digits than its factorization.

85802117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22362.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 85802117 is about 9262.9432147671. The cubic root of 85802117 is about 441.0616872005.

The spelling of 85802117 in words is "eighty-five million, eight hundred two thousand, one hundred seventeen".