3658943 has 2 divisors, whose sum is σ = 3658944. Its totient is φ = 3658942.

The previous prime is 3658891. The next prime is 3658981. The reversal of 3658943 is 3498563.

It is an a-pointer prime, because the next prime (3658981) can be obtained adding 3658943 to its sum of digits (38).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3658943 - 2¹⁰ = 3657919 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 3658897 and 3658906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3651943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1829471 + 1829472.

It is an arithmetic number, because the mean of its divisors is an integer number (1829472).

Almost surely, 2^3658943 is an apocalyptic number.

3658943 is a deficient number, since it is larger than the sum of its proper divisors (1).

3658943 is an equidigital number, since it uses as much as digits as its factorization.

3658943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 38.

The square root of 3658943 is about 1912.8363756474. The cubic root of 3658943 is about 154.0938175742.

The spelling of 3658943 in words is "three million, six hundred fifty-eight thousand, nine hundred forty-three".