8213031802 has 4 divisors (see below), whose sum is σ = 12319547706. Its totient is φ = 4106515900.

The previous prime is 8213031781. The next prime is 8213031851. The reversal of 8213031802 is 2081303128.

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., 5326226361 + 2886805441 = 72981^2 + 53729^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2053257949 + ... + 2053257952.

Almost surely, 2^8213031802 is an apocalyptic number.

8213031802 is a deficient number, since it is larger than the sum of its proper divisors (4106515904).

8213031802 is a wasteful number, since it uses less digits than its factorization.

8213031802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4106515903.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 8213031802 is about 90625.7789042389. The cubic root of 8213031802 is about 2017.5973624732.

The spelling of 8213031802 in words is "eight billion, two hundred thirteen million, thirty-one thousand, eight hundred two".