3551629 has 2 divisors, whose sum is σ = 3551630. Its totient is φ = 3551628.

The previous prime is 3551627. The next prime is 3551641. The reversal of 3551629 is 9261553.

3551629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2319529 + 1232100 = 1523^2 + 1110^2 .

It is a cyclic number.

It is not a de Polignac number, because 3551629 - 2¹ = 3551627 is a prime.

It is a super-2 number, since 2×3551629² = 25228137107282, which contains 22 as substring.

Together with 3551627, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3551629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3551621) 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, 1775814 + 1775815.

It is an arithmetic number, because the mean of its divisors is an integer number (1775815).

Almost surely, 2^3551629 is an apocalyptic number.

It is an amenable number.

3551629 is a deficient number, since it is larger than the sum of its proper divisors (1).

3551629 is an equidigital number, since it uses as much as digits as its factorization.

3551629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 31.

The square root of 3551629 is about 1884.5766102762. The cubic root of 3551629 is about 152.5723601778.

The spelling of 3551629 in words is "three million, five hundred fifty-one thousand, six hundred twenty-nine".