3521953 has 2 divisors, whose sum is σ = 3521954. Its totient is φ = 3521952.

The previous prime is 3521951. The next prime is 3521977. The reversal of 3521953 is 3591253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2505889 + 1016064 = 1583^2 + 1008^2 .

It is a cyclic number.

It is not a de Polignac number, because 3521953 - 2¹ = 3521951 is a prime.

Together with 3521951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3521951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760976 + 1760977.

It is an arithmetic number, because the mean of its divisors is an integer number (1760977).

Almost surely, 2^3521953 is an apocalyptic number.

It is an amenable number.

3521953 is a deficient number, since it is larger than the sum of its proper divisors (1).

3521953 is an equidigital number, since it uses as much as digits as its factorization.

3521953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4050, while the sum is 28.

The square root of 3521953 is about 1876.6867080043. The cubic root of 3521953 is about 152.1462264342.

The spelling of 3521953 in words is "three million, five hundred twenty-one thousand, nine hundred fifty-three".