3672391643 has 2 divisors, whose sum is σ = 3672391644. Its totient is φ = 3672391642.

The previous prime is 3672391627. The next prime is 3672391691. The reversal of 3672391643 is 3461932763.

3672391643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (3461932763) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3672391643 - 2⁴ = 3672391627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3672391594 and 3672391603.

It is not a weakly prime, because it can be changed into another prime (3672391243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1836195821 + 1836195822.

It is an arithmetic number, because the mean of its divisors is an integer number (1836195822).

Almost surely, 2^3672391643 is an apocalyptic number.

3672391643 is a deficient number, since it is larger than the sum of its proper divisors (1).

3672391643 is an equidigital number, since it uses as much as digits as its factorization.

3672391643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 44.

The square root of 3672391643 is about 60600.2610802957. The cubic root of 3672391643 is about 1542.8238012706.

The spelling of 3672391643 in words is "three billion, six hundred seventy-two million, three hundred ninety-one thousand, six hundred forty-three".