3443997943 has 4 divisors (see below), whose sum is σ = 3593737008. Its totient is φ = 3294258880.

The previous prime is 3443997937. The next prime is 3443997959. The reversal of 3443997943 is 3497993443.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3443997943 - 2¹³ = 3443989751 is a prime.

It is a super-2 number, since 2×3443997943² = 23722243662776462498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3443997913) 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, 74869498 + ... + 74869543.

It is an arithmetic number, because the mean of its divisors is an integer number (898434252).

Almost surely, 2^3443997943 is an apocalyptic number.

3443997943 is a deficient number, since it is larger than the sum of its proper divisors (149739065).

3443997943 is a wasteful number, since it uses less digits than its factorization.

3443997943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149739064.

The product of its digits is 8817984, while the sum is 55.

The square root of 3443997943 is about 58685.5854788891. The cubic root of 3443997943 is about 1510.1530396180.

The spelling of 3443997943 in words is "three billion, four hundred forty-three million, nine hundred ninety-seven thousand, nine hundred forty-three".