820492208 has 10 divisors (see below), whose sum is σ = 1589703684. Its totient is φ = 410246096.

The previous prime is 820492201. The next prime is 820492213. The reversal of 820492208 is 802294028.

It is not an unprimeable number, because it can be changed into a prime (820492201) 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, 25640366 + ... + 25640397.

Almost surely, 2^820492208 is an apocalyptic number.

It is an amenable number.

820492208 is a deficient number, since it is larger than the sum of its proper divisors (769211476).

820492208 is a wasteful number, since it uses less digits than its factorization.

820492208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51280771 (or 51280765 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 820492208 is about 28644.2351617215. The cubic root of 820492208 is about 936.1774020284.

The spelling of 820492208 in words is "eight hundred twenty million, four hundred ninety-two thousand, two hundred eight".