858652481 has 2 divisors, whose sum is σ = 858652482. Its totient is φ = 858652480.

The previous prime is 858652433. The next prime is 858652489. The reversal of 858652481 is 184256858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 535228225 + 323424256 = 23135^2 + 17984^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-858652481 is a prime.

It is a super-2 number, since 2×858652481² = 1474568166254910722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (858652489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429326240 + 429326241.

It is an arithmetic number, because the mean of its divisors is an integer number (429326241).

Almost surely, 2^858652481 is an apocalyptic number.

It is an amenable number.

858652481 is a deficient number, since it is larger than the sum of its proper divisors (1).

858652481 is an equidigital number, since it uses as much as digits as its factorization.

858652481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 614400, while the sum is 47.

The square root of 858652481 is about 29302.7725821295. The cubic root of 858652481 is about 950.4715963237.

The spelling of 858652481 in words is "eight hundred fifty-eight million, six hundred fifty-two thousand, four hundred eighty-one".