3718345 has 4 divisors (see below), whose sum is σ = 4462020. Its totient is φ = 2974672.

The previous prime is 3718327. The next prime is 3718349. The reversal of 3718345 is 5438173.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5438173 = 13 ⋅418321.

It can be written as a sum of positive squares in 2 ways, for example, as 2886601 + 831744 = 1699^2 + 912^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3718345 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3718349) 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, 371830 + ... + 371839.

It is an arithmetic number, because the mean of its divisors is an integer number (1115505).

Almost surely, 2^3718345 is an apocalyptic number.

It is an amenable number.

3718345 is a deficient number, since it is larger than the sum of its proper divisors (743675).

3718345 is an equidigital number, since it uses as much as digits as its factorization.

3718345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743674.

The product of its digits is 10080, while the sum is 31.

The square root of 3718345 is about 1928.3010657052. The cubic root of 3718345 is about 154.9232363561.

The spelling of 3718345 in words is "three million, seven hundred eighteen thousand, three hundred forty-five".