2943613 has 4 divisors (see below), whose sum is σ = 3098560. Its totient is φ = 2788668.

The previous prime is 2943607. The next prime is 2943631. The reversal of 2943613 is 3163492.

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 2943613 - 2¹⁷ = 2812541 is a prime.

It is a Duffinian number.

2943613 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2943643) 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, 77445 + ... + 77482.

It is an arithmetic number, because the mean of its divisors is an integer number (774640).

2^2943613 is an apocalyptic number.

It is an amenable number.

2943613 is a deficient number, since it is larger than the sum of its proper divisors (154947).

2943613 is a wasteful number, since it uses less digits than its factorization.

2943613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154946.

The product of its digits is 3888, while the sum is 28.

The square root of 2943613 is about 1715.6960686555. The cubic root of 2943613 is about 143.3156344951.

The spelling of 2943613 in words is "two million, nine hundred forty-three thousand, six hundred thirteen".