6340293221 has 2 divisors, whose sum is σ = 6340293222. Its totient is φ = 6340293220.

The previous prime is 6340293209. The next prime is 6340293233. The reversal of 6340293221 is 1223920436.

It is a balanced prime because it is at equal distance from previous prime (6340293209) and next prime (6340293233).

It can be written as a sum of positive squares in only one way, i.e., 5511429121 + 828864100 = 74239^2 + 28790^2 .

It is a cyclic number.

It is not a de Polignac number, because 6340293221 - 2¹⁸ = 6340031077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6340293821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3170146610 + 3170146611.

It is an arithmetic number, because the mean of its divisors is an integer number (3170146611).

Almost surely, 2^6340293221 is an apocalyptic number.

It is an amenable number.

6340293221 is a deficient number, since it is larger than the sum of its proper divisors (1).

6340293221 is an equidigital number, since it uses as much as digits as its factorization.

6340293221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 6340293221 is about 79625.9582108749. The cubic root of 6340293221 is about 1850.8438537428.

The spelling of 6340293221 in words is "six billion, three hundred forty million, two hundred ninety-three thousand, two hundred twenty-one".