3721393589 has 4 divisors (see below), whose sum is σ = 3800572224. Its totient is φ = 3642214956.

The previous prime is 3721393549. The next prime is 3721393601. The reversal of 3721393589 is 9853931273.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9853931273 = 151 ⋅65257823.

It is a cyclic number.

It is not a de Polignac number, because 3721393589 - 2¹² = 3721389493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721393549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39589247 + ... + 39589340.

It is an arithmetic number, because the mean of its divisors is an integer number (950143056).

Almost surely, 2^3721393589 is an apocalyptic number.

It is an amenable number.

3721393589 is a deficient number, since it is larger than the sum of its proper divisors (79178635).

3721393589 is an equidigital number, since it uses as much as digits as its factorization.

3721393589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79178634.

The product of its digits is 1224720, while the sum is 50.

The square root of 3721393589 is about 61003.2260540375. The cubic root of 3721393589 is about 1549.6556417109.

The spelling of 3721393589 in words is "three billion, seven hundred twenty-one million, three hundred ninety-three thousand, five hundred eighty-nine".