675287620 has 72 divisors (see below), whose sum is σ = 1706586840. Its totient is φ = 223534080.

The previous prime is 675287611. The next prime is 675287621. The reversal of 675287620 is 26782576.

It can be written as a sum of positive squares in 4 ways, for example, as 84603204 + 590684416 = 9198^2 + 24304^2 .

It is not an unprimeable number, because it can be changed into a prime (675287621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16540 + ... + 40300.

It is an arithmetic number, because the mean of its divisors is an integer number (23702595).

Almost surely, 2^675287620 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 675287620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (853293420).

675287620 is an abundant number, since it is smaller than the sum of its proper divisors (1031299220).

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

675287620 is a wasteful number, since it uses less digits than its factorization.

675287620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23813 (or 23804 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 675287620 is about 25986.2967734920. The cubic root of 675287620 is about 877.3298972503.

The spelling of 675287620 in words is "six hundred seventy-five million, two hundred eighty-seven thousand, six hundred twenty".