6699541 has 2 divisors, whose sum is σ = 6699542. Its totient is φ = 6699540.

The previous prime is 6699491. The next prime is 6699577. The reversal of 6699541 is 1459966.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4218916 + 2480625 = 2054^2 + 1575^2 .

It is a cyclic number.

It is not a de Polignac number, because 6699541 - 2¹⁷ = 6568469 is a prime.

It is a super-2 number, since 2×6699541² = 89767699221362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6699494 and 6699503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6699941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3349770 + 3349771.

It is an arithmetic number, because the mean of its divisors is an integer number (3349771).

Almost surely, 2^6699541 is an apocalyptic number.

It is an amenable number.

6699541 is a deficient number, since it is larger than the sum of its proper divisors (1).

6699541 is an equidigital number, since it uses as much as digits as its factorization.

6699541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 40.

The square root of 6699541 is about 2588.3471560052. The cubic root of 6699541 is about 188.5160579865.

The spelling of 6699541 in words is "six million, six hundred ninety-nine thousand, five hundred forty-one".