3621733 has 2 divisors, whose sum is σ = 3621734. Its totient is φ = 3621732.

The previous prime is 3621727. The next prime is 3621767. The reversal of 3621733 is 3371263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3621409 + 324 = 1903^2 + 18^2 .

It is a cyclic number.

It is not a de Polignac number, because 3621733 - 2⁵ = 3621701 is a prime.

3621733 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3621698 and 3621707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3621713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1810866 + 1810867.

It is an arithmetic number, because the mean of its divisors is an integer number (1810867).

Almost surely, 2^3621733 is an apocalyptic number.

It is an amenable number.

3621733 is a deficient number, since it is larger than the sum of its proper divisors (1).

3621733 is an equidigital number, since it uses as much as digits as its factorization.

3621733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 25.

The square root of 3621733 is about 1903.0851268401. The cubic root of 3621733 is about 153.5696790962.

Adding to 3621733 its reverse (3371263), we get a palindrome (6992996).

The spelling of 3621733 in words is "three million, six hundred twenty-one thousand, seven hundred thirty-three".