3605629 has 2 divisors, whose sum is σ = 3605630. Its totient is φ = 3605628.

The previous prime is 3605621. The next prime is 3605633. The reversal of 3605629 is 9265063.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1954404 + 1651225 = 1398^2 + 1285^2 .

It is a cyclic number.

It is not a de Polignac number, because 3605629 - 2³ = 3605621 is a prime.

It is an Ulam number.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 3605629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3605621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1802814 + 1802815.

It is an arithmetic number, because the mean of its divisors is an integer number (1802815).

Almost surely, 2^3605629 is an apocalyptic number.

It is an amenable number.

3605629 is a deficient number, since it is larger than the sum of its proper divisors (1).

3605629 is an equidigital number, since it uses as much as digits as its factorization.

3605629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 3605629 is about 1898.8493884455. The cubic root of 3605629 is about 153.3417255436.

The spelling of 3605629 in words is "three million, six hundred five thousand, six hundred twenty-nine".