8779545 has 24 divisors (see below), whose sum is σ = 15632136. Its totient is φ = 4555008.

The previous prime is 8779523. The next prime is 8779549. The reversal of 8779545 is 5459778.

It can be written as a sum of positive squares in 4 ways, for example, as 2368521 + 6411024 = 1539^2 + 2532^2 .

It is not a de Polignac number, because 8779545 - 2⁵ = 8779513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

8779545 is a lucky number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 8779545.

It is not an unprimeable number, because it can be changed into a prime (8779549) 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 23 ways as a sum of consecutive naturals, for example, 972 + ... + 4301.

It is an arithmetic number, because the mean of its divisors is an integer number (651339).

Almost surely, 2^8779545 is an apocalyptic number.

It is an amenable number.

8779545 is a deficient number, since it is larger than the sum of its proper divisors (6852591).

8779545 is a wasteful number, since it uses less digits than its factorization.

8779545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5321 (or 5318 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 8779545 is about 2963.0296994799. The cubic root of 8779545 is about 206.2959346725.

The spelling of 8779545 in words is "eight million, seven hundred seventy-nine thousand, five hundred forty-five".