3928912349 has 8 divisors (see below), whose sum is σ = 3987804960. Its totient is φ = 3870430576.

The previous prime is 3928912327. The next prime is 3928912357. The reversal of 3928912349 is 9432198293.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3928912349 is a prime.

It is a super-2 number, since 2×3928912349² = 30872704492249395602, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3928912297 and 3928912306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928912369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83414 + ... + 121719.

It is an arithmetic number, because the mean of its divisors is an integer number (498475620).

Almost surely, 2^3928912349 is an apocalyptic number.

It is an amenable number.

3928912349 is a deficient number, since it is larger than the sum of its proper divisors (58892611).

3928912349 is a wasteful number, since it uses less digits than its factorization.

3928912349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205419.

The product of its digits is 839808, while the sum is 50.

The square root of 3928912349 is about 62681.0365980015. The cubic root of 3928912349 is about 1577.9410703361.

The spelling of 3928912349 in words is "three billion, nine hundred twenty-eight million, nine hundred twelve thousand, three hundred forty-nine".