810347652 has 42 divisors (see below), whose sum is σ = 2126197598. Its totient is φ = 270114912.

The previous prime is 810347651. The next prime is 810347677. The reversal of 810347652 is 256743018.

It can be written as a sum of positive squares in only one way, i.e., 731918916 + 78428736 = 27054^2 + 8856^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (810347651) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 136033 + ... + 141864.

Almost surely, 2^810347652 is an apocalyptic number.

It is an amenable number.

810347652 is an abundant number, since it is smaller than the sum of its proper divisors (1315849946).

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

810347652 is a wasteful number, since it uses less digits than its factorization.

810347652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277919 (or 277902 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 810347652 is about 28466.6059093809. The cubic root of 810347652 is about 932.3030951301.

It can be divided in two parts, 8103 and 47652, that added together give a palindrome (55755).

The spelling of 810347652 in words is "eight hundred ten million, three hundred forty-seven thousand, six hundred fifty-two".