2807821413 has 6 divisors (see below), whose sum is σ = 4055742054. Its totient is φ = 1871880936.

The previous prime is 2807821391. The next prime is 2807821421. The reversal of 2807821413 is 3141287082.

It can be written as a sum of positive squares in only one way, i.e., 2806562529 + 1258884 = 52977^2 + 1122^2 .

It is not a de Polignac number, because 2807821413 - 2⁸ = 2807821157 is a prime.

It is a super-2 number, since 2×2807821413² = 15767722174602633138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2807821433) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 155990070 + ... + 155990087.

It is an arithmetic number, because the mean of its divisors is an integer number (675957009).

Almost surely, 2^2807821413 is an apocalyptic number.

It is an amenable number.

2807821413 is a deficient number, since it is larger than the sum of its proper divisors (1247920641).

2807821413 is a wasteful number, since it uses less digits than its factorization.

2807821413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311980163 (or 311980160 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 2807821413 is about 52988.8800881845. The cubic root of 2807821413 is about 1410.7709033226.

The spelling of 2807821413 in words is "two billion, eight hundred seven million, eight hundred twenty-one thousand, four hundred thirteen".