85826121 has 4 divisors (see below), whose sum is σ = 114434832. Its totient is φ = 57217412.

The previous prime is 85826119. The next prime is 85826131. The reversal of 85826121 is 12162858.

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 85826121 - 2¹ = 85826119 is a prime.

It is a super-2 number, since 2×85826121² = 14732246091813282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85826101) 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, 14304351 + ... + 14304356.

It is an arithmetic number, because the mean of its divisors is an integer number (28608708).

Almost surely, 2^85826121 is an apocalyptic number.

It is an amenable number.

85826121 is a deficient number, since it is larger than the sum of its proper divisors (28608711).

85826121 is a wasteful number, since it uses less digits than its factorization.

85826121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28608710.

The product of its digits is 7680, while the sum is 33.

The square root of 85826121 is about 9264.2388246418. The cubic root of 85826121 is about 441.1028138377.

Adding to 85826121 its reverse (12162858), we get a palindrome (97988979).

The spelling of 85826121 in words is "eighty-five million, eight hundred twenty-six thousand, one hundred twenty-one".