852820379 has 4 divisors (see below), whose sum is σ = 860367576. Its totient is φ = 845273184.

The previous prime is 852820361. The next prime is 852820393. The reversal of 852820379 is 973028258.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973028258 = 2 ⋅486514129.

It is a cyclic number.

It is not a de Polignac number, because 852820379 - 2¹⁶ = 852754843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (852826379) 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, 3773429 + ... + 3773654.

It is an arithmetic number, because the mean of its divisors is an integer number (215091894).

Almost surely, 2^852820379 is an apocalyptic number.

852820379 is a deficient number, since it is larger than the sum of its proper divisors (7547197).

852820379 is a wasteful number, since it uses less digits than its factorization.

852820379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7547196.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 852820379 is about 29203.0885181688. The cubic root of 852820379 is about 948.3147885368.

The spelling of 852820379 in words is "eight hundred fifty-two million, eight hundred twenty thousand, three hundred seventy-nine".