6820070399 has 4 divisors (see below), whose sum is σ = 7004396664. Its totient is φ = 6635744136.

The previous prime is 6820070393. The next prime is 6820070417. The reversal of 6820070399 is 9930700286.

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

It is a cyclic number.

It is not a de Polignac number, because 6820070399 - 2³² = 2525103103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6820070393) 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 in 3 ways as a sum of consecutive naturals, for example, 92163077 + ... + 92163150.

It is an arithmetic number, because the mean of its divisors is an integer number (1751099166).

Almost surely, 2^6820070399 is an apocalyptic number.

6820070399 is a deficient number, since it is larger than the sum of its proper divisors (184326265).

6820070399 is a wasteful number, since it uses less digits than its factorization.

6820070399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184326264.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 6820070399 is about 82583.7175174380. The cubic root of 6820070399 is about 1896.3985701773.

The spelling of 6820070399 in words is "six billion, eight hundred twenty million, seventy thousand, three hundred ninety-nine".