8378045 has 16 divisors (see below), whose sum is σ = 11009712. Its totient is φ = 6082560.

The previous prime is 8378039. The next prime is 8378047. The reversal of 8378045 is 5408738.

It can be written as a sum of positive squares in 8 ways, for example, as 5508409 + 2869636 = 2347^2 + 1694^2 .

It is not a de Polignac number, because 8378045 - 2²² = 4183741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8377996 and 8378014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8378047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2909 + ... + 5021.

It is an arithmetic number, because the mean of its divisors is an integer number (688107).

Almost surely, 2^8378045 is an apocalyptic number.

It is an amenable number.

8378045 is a deficient number, since it is larger than the sum of its proper divisors (2631667).

8378045 is a wasteful number, since it uses less digits than its factorization.

8378045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192.

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

The square root of 8378045 is about 2894.4852737577. The cubic root of 8378045 is about 203.1020138092.

The spelling of 8378045 in words is "eight million, three hundred seventy-eight thousand, forty-five".