8257238 has 16 divisors (see below), whose sum is σ = 13685760. Its totient is φ = 3705000.

The previous prime is 8257237. The next prime is 8257243. The reversal of 8257238 is 8327528.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8257198 and 8257207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8257237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638 + ... + 4113.

It is an arithmetic number, because the mean of its divisors is an integer number (855360).

Almost surely, 2^8257238 is an apocalyptic number.

8257238 is a deficient number, since it is larger than the sum of its proper divisors (5428522).

8257238 is a wasteful number, since it uses less digits than its factorization.

8257238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4843.

The product of its digits is 26880, while the sum is 35.

The square root of 8257238 is about 2873.5410211097. The cubic root of 8257238 is about 202.1210756681.

The spelling of 8257238 in words is "eight million, two hundred fifty-seven thousand, two hundred thirty-eight".