85328961 has 4 divisors (see below), whose sum is σ = 113771952. Its totient is φ = 56885972.

The previous prime is 85328951. The next prime is 85328977. The reversal of 85328961 is 16982358.

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 85328961 - 2¹⁰ = 85327937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85328911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14221491 + ... + 14221496.

It is an arithmetic number, because the mean of its divisors is an integer number (28442988).

Almost surely, 2^85328961 is an apocalyptic number.

It is an amenable number.

85328961 is a deficient number, since it is larger than the sum of its proper divisors (28442991).

85328961 is a wasteful number, since it uses less digits than its factorization.

85328961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28442990.

The product of its digits is 103680, while the sum is 42.

The square root of 85328961 is about 9237.3676445186. The cubic root of 85328961 is about 440.2494470541.

The spelling of 85328961 in words is "eighty-five million, three hundred twenty-eight thousand, nine hundred sixty-one".