3391972789 has 4 divisors (see below), whose sum is σ = 3425556780. Its totient is φ = 3358388800.

The previous prime is 3391972757. The next prime is 3391972799. The reversal of 3391972789 is 9872791933.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9872791933 = 3581 ⋅2756993.

It can be written as a sum of positive squares in 2 ways, for example, as 1742394564 + 1649578225 = 41742^2 + 40615^2 .

It is a cyclic number.

It is not a de Polignac number, because 3391972789 - 2⁵ = 3391972757 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 (3391972799) 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 in 3 ways as a sum of consecutive naturals, for example, 16791844 + ... + 16792045.

It is an arithmetic number, because the mean of its divisors is an integer number (856389195).

Almost surely, 2^3391972789 is an apocalyptic number.

It is an amenable number.

3391972789 is a deficient number, since it is larger than the sum of its proper divisors (33583991).

3391972789 is a wasteful number, since it uses less digits than its factorization.

3391972789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33583990.

The product of its digits is 5143824, while the sum is 58.

The square root of 3391972789 is about 58240.6455063815. The cubic root of 3391972789 is about 1502.5102838989.

The spelling of 3391972789 in words is "three billion, three hundred ninety-one million, nine hundred seventy-two thousand, seven hundred eighty-nine".