852794581 has 2 divisors, whose sum is σ = 852794582. Its totient is φ = 852794580.

The previous prime is 852794573. The next prime is 852794599. The reversal of 852794581 is 185497258.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 849431025 + 3363556 = 29145^2 + 1834^2 .

It is a cyclic number.

It is not a de Polignac number, because 852794581 - 2³ = 852794573 is a prime.

It is a super-2 number, since 2×852794581² = 1454517194765931122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (852794521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426397290 + 426397291.

It is an arithmetic number, because the mean of its divisors is an integer number (426397291).

Almost surely, 2^852794581 is an apocalyptic number.

It is an amenable number.

852794581 is a deficient number, since it is larger than the sum of its proper divisors (1).

852794581 is an equidigital number, since it uses as much as digits as its factorization.

852794581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 49.

The square root of 852794581 is about 29202.6468149721. The cubic root of 852794581 is about 948.3052261983.

The spelling of 852794581 in words is "eight hundred fifty-two million, seven hundred ninety-four thousand, five hundred eighty-one".