6771631 has 2 divisors, whose sum is σ = 6771632. Its totient is φ = 6771630.

The previous prime is 6771577. The next prime is 6771641. The reversal of 6771631 is 1361776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6771631 - 2⁹ = 6771119 is a prime.

It is a super-2 number, since 2×6771631² = 91709972800322, which contains 22 as substring.

6771631 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6771593 and 6771602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6771641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3385815 + 3385816.

It is an arithmetic number, because the mean of its divisors is an integer number (3385816).

Almost surely, 2^6771631 is an apocalyptic number.

6771631 is a deficient number, since it is larger than the sum of its proper divisors (1).

6771631 is an equidigital number, since it uses as much as digits as its factorization.

6771631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292, while the sum is 31.

The square root of 6771631 is about 2602.2357694875. The cubic root of 6771631 is about 189.1898189063.

The spelling of 6771631 in words is "six million, seven hundred seventy-one thousand, six hundred thirty-one".