8278445 has 8 divisors (see below), whose sum is σ = 11353344. Its totient is φ = 5676624.

The previous prime is 8278421. The next prime is 8278477. The reversal of 8278445 is 5448728.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8278445 - 2¹⁴ = 8262061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8278399 and 8278408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118229 + ... + 118298.

It is an arithmetic number, because the mean of its divisors is an integer number (1419168).

Almost surely, 2^8278445 is an apocalyptic number.

It is an amenable number.

8278445 is a deficient number, since it is larger than the sum of its proper divisors (3074899).

8278445 is a wasteful number, since it uses less digits than its factorization.

8278445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236539.

The product of its digits is 71680, while the sum is 38.

The square root of 8278445 is about 2877.2287013722. The cubic root of 8278445 is about 202.2939630718.

The spelling of 8278445 in words is "eight million, two hundred seventy-eight thousand, four hundred forty-five".