3621331723 has 2 divisors, whose sum is σ = 3621331724. Its totient is φ = 3621331722.

The previous prime is 3621331631. The next prime is 3621331729. The reversal of 3621331723 is 3271331263.

It is a strong prime.

It is an emirp because it is prime and its reverse (3271331263) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3621331723 - 2²¹ = 3619234571 is a prime.

It is a super-2 number, since 2×3621331723² = 26228086896012297458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3621331729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1810665861 + 1810665862.

It is an arithmetic number, because the mean of its divisors is an integer number (1810665862).

Almost surely, 2^3621331723 is an apocalyptic number.

3621331723 is a deficient number, since it is larger than the sum of its proper divisors (1).

3621331723 is an equidigital number, since it uses as much as digits as its factorization.

3621331723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 31.

The square root of 3621331723 is about 60177.5018009222. The cubic root of 3621331723 is about 1535.6400720227.

Adding to 3621331723 its reverse (3271331263), we get a palindrome (6892662986).

The spelling of 3621331723 in words is "three billion, six hundred twenty-one million, three hundred thirty-one thousand, seven hundred twenty-three".