3521653 has 2 divisors, whose sum is σ = 3521654. Its totient is φ = 3521652.

The previous prime is 3521633. The next prime is 3521659. The reversal of 3521653 is 3561253.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2845969 + 675684 = 1687^2 + 822^2 .

It is an emirp because it is prime and its reverse (3561253) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3521653 - 2¹⁷ = 3390581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3521659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760826 + 1760827.

It is an arithmetic number, because the mean of its divisors is an integer number (1760827).

Almost surely, 2^3521653 is an apocalyptic number.

It is an amenable number.

3521653 is a deficient number, since it is larger than the sum of its proper divisors (1).

3521653 is an equidigital number, since it uses as much as digits as its factorization.

3521653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 25.

The square root of 3521653 is about 1876.6067782037. The cubic root of 3521653 is about 152.1419063723.

The spelling of 3521653 in words is "three million, five hundred twenty-one thousand, six hundred fifty-three".