6229661 has 2 divisors, whose sum is σ = 6229662. Its totient is φ = 6229660.

The previous prime is 6229649. The next prime is 6229723. The reversal of 6229661 is 1669226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5317636 + 912025 = 2306^2 + 955^2 .

It is a cyclic number.

It is not a de Polignac number, because 6229661 - 2¹⁸ = 5967517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6229621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3114830 + 3114831.

It is an arithmetic number, because the mean of its divisors is an integer number (3114831).

Almost surely, 2^6229661 is an apocalyptic number.

It is an amenable number.

6229661 is a deficient number, since it is larger than the sum of its proper divisors (1).

6229661 is an equidigital number, since it uses as much as digits as its factorization.

6229661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 6229661 is about 2495.9288852049. The cubic root of 6229661 is about 184.0015457495.

The spelling of 6229661 in words is "six million, two hundred twenty-nine thousand, six hundred sixty-one".