675286820 has 72 divisors (see below), whose sum is σ = 1543809960. Its totient is φ = 248002560.

The previous prime is 675286819. The next prime is 675286823. The reversal of 675286820 is 28682576.

It can be written as a sum of positive squares in 12 ways, for example, as 269747776 + 405539044 = 16424^2 + 20138^2 .

It is not an unprimeable number, because it can be changed into a prime (675286823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 814166 + ... + 814994.

It is an arithmetic number, because the mean of its divisors is an integer number (21441805).

Almost surely, 2^675286820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 675286820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (771904980).

675286820 is an abundant number, since it is smaller than the sum of its proper divisors (868523140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

675286820 is a wasteful number, since it uses less digits than its factorization.

675286820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 675286820 is about 25986.2813807593. The cubic root of 675286820 is about 877.3295507983.

The spelling of 675286820 in words is "six hundred seventy-five million, two hundred eighty-six thousand, eight hundred twenty".