3291397389 has 16 divisors (see below), whose sum is σ = 5572736640. Its totient is φ = 1880798400.

The previous prime is 3291397381. The next prime is 3291397429. The reversal of 3291397389 is 9837931923.

3291397389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3291397389 - 2³ = 3291397381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3291397381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8707212 + ... + 8707589.

It is an arithmetic number, because the mean of its divisors is an integer number (348296040).

Almost surely, 2^3291397389 is an apocalyptic number.

It is an amenable number.

3291397389 is a deficient number, since it is larger than the sum of its proper divisors (2281339251).

3291397389 is a wasteful number, since it uses less digits than its factorization.

3291397389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17414817 (or 17414811 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 3291397389 is about 57370.7014860373. The cubic root of 3291397389 is about 1487.5107286753.

The spelling of 3291397389 in words is "three billion, two hundred ninety-one million, three hundred ninety-seven thousand, three hundred eighty-nine".