852472321 has 2 divisors, whose sum is σ = 852472322. Its totient is φ = 852472320.

The previous prime is 852472303. The next prime is 852472343. The reversal of 852472321 is 123274258.

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., 844716096 + 7756225 = 29064^2 + 2785^2 .

It is a cyclic number.

It is not a de Polignac number, because 852472321 - 2²⁵ = 818917889 is a prime.

It is a super-2 number, since 2×852472321² = 1453418116142254082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (852472351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426236160 + 426236161.

It is an arithmetic number, because the mean of its divisors is an integer number (426236161).

Almost surely, 2^852472321 is an apocalyptic number.

It is an amenable number.

852472321 is a deficient number, since it is larger than the sum of its proper divisors (1).

852472321 is an equidigital number, since it uses as much as digits as its factorization.

852472321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 852472321 is about 29197.1286430704. The cubic root of 852472321 is about 948.1857604046.

The spelling of 852472321 in words is "eight hundred fifty-two million, four hundred seventy-two thousand, three hundred twenty-one".