852401 has 4 divisors (see below), whose sum is σ = 929904. Its totient is φ = 774900.

The previous prime is 852391. The next prime is 852409. The reversal of 852401 is 104258.

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 a de Polignac number, because none of the positive numbers 2^k-852401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (852409) 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, 38735 + ... + 38756.

It is an arithmetic number, because the mean of its divisors is an integer number (232476).

2⁸⁵²⁴⁰¹ is an apocalyptic number.

It is an amenable number.

852401 is a deficient number, since it is larger than the sum of its proper divisors (77503).

852401 is a wasteful number, since it uses less digits than its factorization.

852401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77502.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 852401 is about 923.2556525687. The cubic root of 852401 is about 94.8159316753.

Adding to 852401 its reverse (104258), we get a palindrome (956659).

The spelling of 852401 in words is "eight hundred fifty-two thousand, four hundred one".