3894968969 has 4 divisors (see below), whose sum is σ = 3925638144. Its totient is φ = 3864299796.

The previous prime is 3894968941. The next prime is 3894969019. The reversal of 3894968969 is 9698694983.

3894968969 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3894968969 is a prime.

It is a super-2 number, since 2×3894968969² = 30341566538945845922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3894968369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15334397 + ... + 15334650.

It is an arithmetic number, because the mean of its divisors is an integer number (981409536).

Almost surely, 2^3894968969 is an apocalyptic number.

It is an amenable number.

3894968969 is a deficient number, since it is larger than the sum of its proper divisors (30669175).

3894968969 is a wasteful number, since it uses less digits than its factorization.

3894968969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30669174.

The product of its digits is 181398528, while the sum is 71.

The square root of 3894968969 is about 62409.6864997734. The cubic root of 3894968969 is about 1573.3837750105.

The spelling of 3894968969 in words is "three billion, eight hundred ninety-four million, nine hundred sixty-eight thousand, nine hundred sixty-nine".