6893652421 has 2 divisors, whose sum is σ = 6893652422. Its totient is φ = 6893652420.

The previous prime is 6893652419. The next prime is 6893652503. The reversal of 6893652421 is 1242563986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4178200321 + 2715452100 = 64639^2 + 52110^2 .

It is a cyclic number.

It is not a de Polignac number, because 6893652421 - 2¹ = 6893652419 is a prime.

It is a super-2 number, since 2×6893652421² = 95044887403118322482, which contains 22 as substring.

Together with 6893652419, 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 (6893652401) 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 as a sum of consecutive naturals, namely, 3446826210 + 3446826211.

It is an arithmetic number, because the mean of its divisors is an integer number (3446826211).

Almost surely, 2^6893652421 is an apocalyptic number.

It is an amenable number.

6893652421 is a deficient number, since it is larger than the sum of its proper divisors (1).

6893652421 is an equidigital number, since it uses as much as digits as its factorization.

6893652421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 46.

The square root of 6893652421 is about 83028.0219022470. The cubic root of 6893652421 is about 1903.1942962414.

The spelling of 6893652421 in words is "six billion, eight hundred ninety-three million, six hundred fifty-two thousand, four hundred twenty-one".