8263257 has 4 divisors (see below), whose sum is σ = 11017680. Its totient is φ = 5508836.

The previous prime is 8263249. The next prime is 8263291. The reversal of 8263257 is 7523628.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8263257 - 2³ = 8263249 is a prime.

It is a d-powerful number, because it can be written as 8² + 2¹⁸ + 6⁴ + 3⁹ + 2¹⁸ + 5⁹ + 7⁸ .

8263257 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8263237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1377207 + ... + 1377212.

It is an arithmetic number, because the mean of its divisors is an integer number (2754420).

Almost surely, 2^8263257 is an apocalyptic number.

It is an amenable number.

8263257 is a deficient number, since it is larger than the sum of its proper divisors (2754423).

8263257 is a wasteful number, since it uses less digits than its factorization.

8263257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754422.

The product of its digits is 20160, while the sum is 33.

The square root of 8263257 is about 2874.5881444130. The cubic root of 8263257 is about 202.1701748654.

The spelling of 8263257 in words is "eight million, two hundred sixty-three thousand, two hundred fifty-seven".