675747620 has 48 divisors (see below), whose sum is σ = 1506178800. Its totient is φ = 253784064.

The previous prime is 675747617. The next prime is 675747629. The reversal of 675747620 is 26747576.

It can be written as a sum of positive squares in 8 ways, for example, as 891136 + 674856484 = 944^2 + 25978^2 .

It is not an unprimeable number, because it can be changed into a prime (675747629) 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, 153206 + ... + 157554.

It is an arithmetic number, because the mean of its divisors is an integer number (31378725).

Almost surely, 2^675747620 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 675747620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (753089400).

675747620 is an abundant number, since it is smaller than the sum of its proper divisors (830431180).

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

675747620 is a wasteful number, since it uses less digits than its factorization.

675747620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4832 (or 4830 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 44.

The square root of 675747620 is about 25995.1460853752. The cubic root of 675747620 is about 877.5290618427.

Subtracting from 675747620 its sum of digits (44), we obtain a palindrome (675747576).

The spelling of 675747620 in words is "six hundred seventy-five million, seven hundred forty-seven thousand, six hundred twenty".