3968829491 has 4 divisors (see below), whose sum is σ = 4329632184. Its totient is φ = 3608026800.

The previous prime is 3968829463. The next prime is 3968829493. The reversal of 3968829491 is 1949288693.

3968829491 is digitally balanced in base 2, 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 an emirpimes, since its reverse is a distinct semiprime: 1949288693 = 11 ⋅177208063.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3968829491 is a prime.

It is a super-3 number, since 3×3968829491³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3968829491.

It is not an unprimeable number, because it can be changed into a prime (3968829493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180401330 + ... + 180401351.

It is an arithmetic number, because the mean of its divisors is an integer number (1082408046).

Almost surely, 2^3968829491 is an apocalyptic number.

3968829491 is a deficient number, since it is larger than the sum of its proper divisors (360802693).

3968829491 is a wasteful number, since it uses less digits than its factorization.

3968829491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360802692.

The product of its digits is 6718464, while the sum is 59.

The square root of 3968829491 is about 62998.6467394340. The cubic root of 3968829491 is about 1583.2669532380.

The spelling of 3968829491 in words is "three billion, nine hundred sixty-eight million, eight hundred twenty-nine thousand, four hundred ninety-one".