8278413 has 32 divisors (see below), whose sum is σ = 13547520. Its totient is φ = 4424640.

The previous prime is 8278411. The next prime is 8278421. The reversal of 8278413 is 3148728.

It is not a de Polignac number, because 8278413 - 2¹ = 8278411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8278411) 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 31 ways as a sum of consecutive naturals, for example, 9448 + ... + 10286.

It is an arithmetic number, because the mean of its divisors is an integer number (423360).

Almost surely, 2^8278413 is an apocalyptic number.

It is an amenable number.

8278413 is a deficient number, since it is larger than the sum of its proper divisors (5269107).

8278413 is a wasteful number, since it uses less digits than its factorization.

8278413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889.

The product of its digits is 10752, while the sum is 33.

The square root of 8278413 is about 2877.2231404603. The cubic root of 8278413 is about 202.2937024183.

The spelling of 8278413 in words is "eight million, two hundred seventy-eight thousand, four hundred thirteen".