3400843 has 2 divisors, whose sum is σ = 3400844. Its totient is φ = 3400842.

The previous prime is 3400841. The next prime is 3400847. The reversal of 3400843 is 3480043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3400843 - 2¹ = 3400841 is a prime.

It is a super-2 number, since 2×3400843² = 23131466221298, which contains 22 as substring.

Together with 3400841, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3400841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1700421 + 1700422.

It is an arithmetic number, because the mean of its divisors is an integer number (1700422).

Almost surely, 2^3400843 is an apocalyptic number.

3400843 is a deficient number, since it is larger than the sum of its proper divisors (1).

3400843 is an equidigital number, since it uses as much as digits as its factorization.

3400843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 3400843 is about 1844.1374677610. The cubic root of 3400843 is about 150.3818861871.

Adding to 3400843 its reverse (3480043), we get a palindrome (6880886).

The spelling of 3400843 in words is "three million, four hundred thousand, eight hundred forty-three".