6651793 has 2 divisors, whose sum is σ = 6651794. Its totient is φ = 6651792.

The previous prime is 6651791. The next prime is 6651809. The reversal of 6651793 is 3971566.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5345344 + 1306449 = 2312^2 + 1143^2 .

It is a cyclic number.

It is not a de Polignac number, because 6651793 - 2¹ = 6651791 is a prime.

It is a super-2 number, since 2×6651793² = 88492700229698, which contains 22 as substring.

Together with 6651791, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6651791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3325896 + 3325897.

It is an arithmetic number, because the mean of its divisors is an integer number (3325897).

Almost surely, 2^6651793 is an apocalyptic number.

It is an amenable number.

6651793 is a deficient number, since it is larger than the sum of its proper divisors (1).

6651793 is an equidigital number, since it uses as much as digits as its factorization.

6651793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 37.

The square root of 6651793 is about 2579.1070160038. The cubic root of 6651793 is about 188.0671349940.

The spelling of 6651793 in words is "six million, six hundred fifty-one thousand, seven hundred ninety-three".