852613491 has 32 divisors (see below), whose sum is σ = 1225082880. Its totient is φ = 526406400.

The previous prime is 852613483. The next prime is 852613513. The reversal of 852613491 is 194316258.

It is not a de Polignac number, because 852613491 - 2³ = 852613483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (852613441) 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 31 ways as a sum of consecutive naturals, for example, 199980 + ... + 204198.

It is an arithmetic number, because the mean of its divisors is an integer number (38283840).

Almost surely, 2^852613491 is an apocalyptic number.

852613491 is a deficient number, since it is larger than the sum of its proper divisors (372469389).

852613491 is a wasteful number, since it uses less digits than its factorization.

852613491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4347.

The product of its digits is 51840, while the sum is 39.

The square root of 852613491 is about 29199.5460752389. The cubic root of 852613491 is about 948.2380975860.

The spelling of 852613491 in words is "eight hundred fifty-two million, six hundred thirteen thousand, four hundred ninety-one".