3443813 has 4 divisors (see below), whose sum is σ = 3593568. Its totient is φ = 3294060.

The previous prime is 3443777. The next prime is 3443819. The reversal of 3443813 is 3183443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3443813 - 2⁶ = 3443749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3443819) 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, 74843 + ... + 74888.

It is an arithmetic number, because the mean of its divisors is an integer number (898392).

Almost surely, 2^3443813 is an apocalyptic number.

It is an amenable number.

3443813 is a deficient number, since it is larger than the sum of its proper divisors (149755).

3443813 is a wasteful number, since it uses less digits than its factorization.

3443813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149754.

The product of its digits is 3456, while the sum is 26.

The square root of 3443813 is about 1855.7513303242. The cubic root of 3443813 is about 151.0126007349.

The spelling of 3443813 in words is "three million, four hundred forty-three thousand, eight hundred thirteen".