3082700821 has 4 divisors (see below), whose sum is σ = 3087495712. Its totient is φ = 3077905932.

The previous prime is 3082700801. The next prime is 3082700857. The reversal of 3082700821 is 1280072803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1280072803 = 11423 ⋅112061.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3082700821 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 (3082700801) 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, 2396481 + ... + 2397766.

It is an arithmetic number, because the mean of its divisors is an integer number (771873928).

Almost surely, 2^3082700821 is an apocalyptic number.

It is an amenable number.

3082700821 is a deficient number, since it is larger than the sum of its proper divisors (4794891).

3082700821 is an equidigital number, since it uses as much as digits as its factorization.

3082700821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4794890.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 3082700821 is about 55522.0750782966. The cubic root of 3082700821 is about 1455.3824246398.

The spelling of 3082700821 in words is "three billion, eighty-two million, seven hundred thousand, eight hundred twenty-one".