8278253 has 4 divisors (see below), whose sum is σ = 8563740. Its totient is φ = 7992768.

The previous prime is 8278247. The next prime is 8278261. The reversal of 8278253 is 3528728.

It is a happy number.

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 5031049 + 3247204 = 2243^2 + 1802^2 .

It is a cyclic number.

It is not a de Polignac number, because 8278253 - 2¹⁰ = 8277229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8278553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142700 + ... + 142757.

It is an arithmetic number, because the mean of its divisors is an integer number (2140935).

Almost surely, 2^8278253 is an apocalyptic number.

It is an amenable number.

8278253 is a deficient number, since it is larger than the sum of its proper divisors (285487).

8278253 is a wasteful number, since it uses less digits than its factorization.

8278253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285486.

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

The square root of 8278253 is about 2877.1953357393. The cubic root of 8278253 is about 202.2923991411.

The spelling of 8278253 in words is "eight million, two hundred seventy-eight thousand, two hundred fifty-three".