8378481 has 4 divisors (see below), whose sum is σ = 11171312. Its totient is φ = 5585652.

The previous prime is 8378479. The next prime is 8378483. The reversal of 8378481 is 1848738.

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 an interprime number because it is at equal distance from previous prime (8378479) and next prime (8378483).

It is not a de Polignac number, because 8378481 - 2¹ = 8378479 is a prime.

It is a super-2 number, since 2×8378481² = 140397887734722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8378483) 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, 1396411 + ... + 1396416.

It is an arithmetic number, because the mean of its divisors is an integer number (2792828).

Almost surely, 2^8378481 is an apocalyptic number.

It is an amenable number.

8378481 is a deficient number, since it is larger than the sum of its proper divisors (2792831).

8378481 is a wasteful number, since it uses less digits than its factorization.

8378481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792830.

The product of its digits is 43008, while the sum is 39.

The square root of 8378481 is about 2894.5605884141. The cubic root of 8378481 is about 203.1055369438.

The spelling of 8378481 in words is "eight million, three hundred seventy-eight thousand, four hundred eighty-one".