820088930 has 8 divisors (see below), whose sum is σ = 1476160092. Its totient is φ = 328035568.

The previous prime is 820088923. The next prime is 820088933. The reversal of 820088930 is 39880028.

It can be written as a sum of positive squares in 2 ways, for example, as 813219289 + 6869641 = 28517^2 + 2621^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (820088933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41004437 + ... + 41004456.

Almost surely, 2^820088930 is an apocalyptic number.

820088930 is a deficient number, since it is larger than the sum of its proper divisors (656071162).

820088930 is a wasteful number, since it uses less digits than its factorization.

820088930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82008900.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 820088930 is about 28637.1948696097. The cubic root of 820088930 is about 936.0239975158.

The spelling of 820088930 in words is "eight hundred twenty million, eighty-eight thousand, nine hundred thirty".