3520229 has 2 divisors, whose sum is σ = 3520230. Its totient is φ = 3520228.

The previous prime is 3520211. The next prime is 3520243. The reversal of 3520229 is 9220253.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3508129 + 12100 = 1873^2 + 110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3520229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3520729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760114 + 1760115.

It is an arithmetic number, because the mean of its divisors is an integer number (1760115).

Almost surely, 2^3520229 is an apocalyptic number.

It is an amenable number.

3520229 is a deficient number, since it is larger than the sum of its proper divisors (1).

3520229 is an equidigital number, since it uses as much as digits as its factorization.

3520229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 3520229 is about 1876.2273316419. The cubic root of 3520229 is about 152.1213971321.

The spelling of 3520229 in words is "three million, five hundred twenty thousand, two hundred twenty-nine".