2068347421 has 4 divisors (see below), whose sum is σ = 2363825632. Its totient is φ = 1772869212.

The previous prime is 2068347409. The next prime is 2068347439. The reversal of 2068347421 is 1247438602.

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: 1247438602 = 2 ⋅623719301.

It is a cyclic number.

It is not a de Polignac number, because 2068347421 - 2⁵ = 2068347389 is a prime.

It is a super-2 number, since 2×2068347421² = 8556122107914702482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068347121) 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, 147739095 + ... + 147739108.

It is an arithmetic number, because the mean of its divisors is an integer number (590956408).

Almost surely, 2^2068347421 is an apocalyptic number.

It is an amenable number.

2068347421 is a deficient number, since it is larger than the sum of its proper divisors (295478211).

2068347421 is an equidigital number, since it uses as much as digits as its factorization.

2068347421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295478210.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 2068347421 is about 45479.0877327151. The cubic root of 2068347421 is about 1274.1126561525.

The spelling of 2068347421 in words is "two billion, sixty-eight million, three hundred forty-seven thousand, four hundred twenty-one".