6770321 has 2 divisors, whose sum is σ = 6770322. Its totient is φ = 6770320.

The previous prime is 6770287. The next prime is 6770353. The reversal of 6770321 is 1230776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6558721 + 211600 = 2561^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 6770321 - 2¹⁰ = 6769297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6770921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3385160 + 3385161.

It is an arithmetic number, because the mean of its divisors is an integer number (3385161).

Almost surely, 2^6770321 is an apocalyptic number.

It is an amenable number.

6770321 is a deficient number, since it is larger than the sum of its proper divisors (1).

6770321 is an equidigital number, since it uses as much as digits as its factorization.

6770321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 6770321 is about 2601.9840506813. The cubic root of 6770321 is about 189.1776182688.

The spelling of 6770321 in words is "six million, seven hundred seventy thousand, three hundred twenty-one".