3943890147 has 4 divisors (see below), whose sum is σ = 5258520200. Its totient is φ = 2629260096.

The previous prime is 3943890133. The next prime is 3943890217. The reversal of 3943890147 is 7410983493.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3943890147 - 2¹⁰ = 3943889123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3943890096 and 3943890105.

It is not an unprimeable number, because it can be changed into a prime (3943890107) 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 3 ways as a sum of consecutive naturals, for example, 657315022 + ... + 657315027.

It is an arithmetic number, because the mean of its divisors is an integer number (1314630050).

Almost surely, 2^3943890147 is an apocalyptic number.

3943890147 is a deficient number, since it is larger than the sum of its proper divisors (1314630053).

3943890147 is a wasteful number, since it uses less digits than its factorization.

3943890147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314630052.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 3943890147 is about 62800.3992582850. The cubic root of 3943890147 is about 1579.9436698125.

The spelling of 3943890147 in words is "three billion, nine hundred forty-three million, eight hundred ninety thousand, one hundred forty-seven".