85348321 has 4 divisors (see below), whose sum is σ = 85465492. Its totient is φ = 85231152.

The previous prime is 85348309. The next prime is 85348327. The reversal of 85348321 is 12384358.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63361600 + 21986721 = 7960^2 + 4689^2 .

It is a cyclic number.

It is not a de Polignac number, because 85348321 - 2⁹ = 85347809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85348327) 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, 57486 + ... + 58951.

It is an arithmetic number, because the mean of its divisors is an integer number (21366373).

Almost surely, 2^85348321 is an apocalyptic number.

It is an amenable number.

85348321 is a deficient number, since it is larger than the sum of its proper divisors (117171).

85348321 is a wasteful number, since it uses less digits than its factorization.

85348321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117170.

The product of its digits is 23040, while the sum is 34.

The square root of 85348321 is about 9238.4155026714. The cubic root of 85348321 is about 440.2827401067.

The spelling of 85348321 in words is "eighty-five million, three hundred forty-eight thousand, three hundred twenty-one".