852462821 has 4 divisors (see below), whose sum is σ = 974243232. Its totient is φ = 730682412.

The previous prime is 852462811. The next prime is 852462833. The reversal of 852462821 is 128264258.

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 852462821 - 2⁶ = 852462757 is a prime.

It is a super-2 number, since 2×852462821² = 1453385722374556082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852462811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60890195 + ... + 60890208.

It is an arithmetic number, because the mean of its divisors is an integer number (243560808).

Almost surely, 2^852462821 is an apocalyptic number.

It is an amenable number.

852462821 is a deficient number, since it is larger than the sum of its proper divisors (121780411).

852462821 is a wasteful number, since it uses less digits than its factorization.

852462821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121780410.

The product of its digits is 61440, while the sum is 38.

The square root of 852462821 is about 29196.9659553865. The cubic root of 852462821 is about 948.1822381795.

The spelling of 852462821 in words is "eight hundred fifty-two million, four hundred sixty-two thousand, eight hundred twenty-one".