8878645 has 4 divisors (see below), whose sum is σ = 10654380. Its totient is φ = 7102912.

The previous prime is 8878637. The next prime is 8878657. The reversal of 8878645 is 5468788.

8878645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 4251844 + 4626801 = 2062^2 + 2151^2 .

It is a cyclic number.

It is not a de Polignac number, because 8878645 - 2³ = 8878637 is a prime.

It is a super-3 number, since 3×8878645³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8878595 and 8878604.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 887860 + ... + 887869.

It is an arithmetic number, because the mean of its divisors is an integer number (2663595).

Almost surely, 2^8878645 is an apocalyptic number.

It is an amenable number.

8878645 is a deficient number, since it is larger than the sum of its proper divisors (1775735).

8878645 is a wasteful number, since it uses less digits than its factorization.

8878645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775734.

The product of its digits is 430080, while the sum is 46.

The square root of 8878645 is about 2979.7055223629. The cubic root of 8878645 is about 207.0692277808.

It can be divided in two parts, 88786 and 45, that added together give a triangular number (88831 = T₄₂₁).

The spelling of 8878645 in words is "eight million, eight hundred seventy-eight thousand, six hundred forty-five".