85890101 has 4 divisors (see below), whose sum is σ = 93698304. Its totient is φ = 78081900.

The previous prime is 85890053. The next prime is 85890109. The reversal of 85890101 is 10109858.

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 85890101 - 2⁶ = 85890037 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85890109) 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, 3904085 + ... + 3904106.

It is an arithmetic number, because the mean of its divisors is an integer number (23424576).

Almost surely, 2^85890101 is an apocalyptic number.

It is an amenable number.

85890101 is a deficient number, since it is larger than the sum of its proper divisors (7808203).

85890101 is a wasteful number, since it uses less digits than its factorization.

85890101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7808202.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 85890101 is about 9267.6912443175. The cubic root of 85890101 is about 441.2123948831.

Adding to 85890101 its reverse (10109858), we get a palindrome (95999959).

The spelling of 85890101 in words is "eighty-five million, eight hundred ninety thousand, one hundred one".