3085656421 has 2 divisors, whose sum is σ = 3085656422. Its totient is φ = 3085656420.

The previous prime is 3085656419. The next prime is 3085656443. The reversal of 3085656421 is 1246565803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1771231396 + 1314425025 = 42086^2 + 36255^2 .

It is a cyclic number.

It is not a de Polignac number, because 3085656421 - 2¹ = 3085656419 is a prime.

Together with 3085656419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3085656121) 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 as a sum of consecutive naturals, namely, 1542828210 + 1542828211.

It is an arithmetic number, because the mean of its divisors is an integer number (1542828211).

Almost surely, 2^3085656421 is an apocalyptic number.

It is an amenable number.

3085656421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3085656421 is an equidigital number, since it uses as much as digits as its factorization.

3085656421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 3085656421 is about 55548.6851419545. The cubic root of 3085656421 is about 1455.8474015708.

The spelling of 3085656421 in words is "three billion, eighty-five million, six hundred fifty-six thousand, four hundred twenty-one".