3996845769 has 48 divisors (see below), whose sum is σ = 6483991680. Its totient is φ = 2179457280.

The previous prime is 3996845759. The next prime is 3996845803. The reversal of 3996845769 is 9675486993.

It is a happy number.

It is not a de Polignac number, because 3996845769 - 2⁸ = 3996845513 is a prime.

It is a super-2 number, since 2×3996845769² = 31949552202346402722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3996845759) 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 47 ways as a sum of consecutive naturals, for example, 1760367 + ... + 1762635.

It is an arithmetic number, because the mean of its divisors is an integer number (135083160).

Almost surely, 2^3996845769 is an apocalyptic number.

It is an amenable number.

3996845769 is a deficient number, since it is larger than the sum of its proper divisors (2487145911).

3996845769 is a wasteful number, since it uses less digits than its factorization.

3996845769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830 (or 2823 counting only the distinct ones).

The product of its digits is 88179840, while the sum is 66.

The square root of 3996845769 is about 63220.6118999176. The cubic root of 3996845769 is about 1586.9836897769.

The spelling of 3996845769 in words is "three billion, nine hundred ninety-six million, eight hundred forty-five thousand, seven hundred sixty-nine".