3443973947 has 4 divisors (see below), whose sum is σ = 3448221336. Its totient is φ = 3439726560.

The previous prime is 3443973937. The next prime is 3443973971. The reversal of 3443973947 is 7493793443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7493793443 = 17 ⋅440811379.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3443973947 is a prime.

It is a super-2 number, since 2×3443973947² = 23721913095229517618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3443973937) 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, 2122478 + ... + 2124099.

It is an arithmetic number, because the mean of its divisors is an integer number (862055334).

Almost surely, 2^3443973947 is an apocalyptic number.

3443973947 is a deficient number, since it is larger than the sum of its proper divisors (4247389).

3443973947 is an equidigital number, since it uses as much as digits as its factorization.

3443973947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247388.

The product of its digits is 6858432, while the sum is 53.

The square root of 3443973947 is about 58685.3810330989. The cubic root of 3443973947 is about 1510.1495322875.

The spelling of 3443973947 in words is "three billion, four hundred forty-three million, nine hundred seventy-three thousand, nine hundred forty-seven".