861533482 has 4 divisors (see below), whose sum is σ = 1292300226. Its totient is φ = 430766740.

The previous prime is 861533459. The next prime is 861533489. The reversal of 861533482 is 284335168.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 855036081 + 6497401 = 29241^2 + 2549^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (861533489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215383369 + ... + 215383372.

Almost surely, 2^861533482 is an apocalyptic number.

861533482 is a deficient number, since it is larger than the sum of its proper divisors (430766744).

861533482 is a wasteful number, since it uses less digits than its factorization.

861533482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430766743.

The product of its digits is 138240, while the sum is 40.

The square root of 861533482 is about 29351.8906035029. The cubic root of 861533482 is about 951.5334355804.

The spelling of 861533482 in words is "eight hundred sixty-one million, five hundred thirty-three thousand, four hundred eighty-two".