8257234285 has 4 divisors (see below), whose sum is σ = 9908681148. Its totient is φ = 6605787424.

The previous prime is 8257234267. The next prime is 8257234309. The reversal of 8257234285 is 5824327528.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 897481764 + 7359752521 = 29958^2 + 85789^2 .

It is a cyclic number.

It is not a de Polignac number, because 8257234285 - 2⁷ = 8257234157 is a prime.

It is a super-2 number, since 2×8257234285² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825723424 + ... + 825723433.

It is an arithmetic number, because the mean of its divisors is an integer number (2477170287).

Almost surely, 2^8257234285 is an apocalyptic number.

It is an amenable number.

8257234285 is a deficient number, since it is larger than the sum of its proper divisors (1651446863).

8257234285 is a wasteful number, since it uses less digits than its factorization.

8257234285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651446862.

The product of its digits is 1075200, while the sum is 46.

The square root of 8257234285 is about 90869.3253248862. The cubic root of 8257234285 is about 2021.2104535607.

The spelling of 8257234285 in words is "eight billion, two hundred fifty-seven million, two hundred thirty-four thousand, two hundred eighty-five".