1906343 has 2 divisors, whose sum is σ = 1906344. Its totient is φ = 1906342.

The previous prime is 1906337. The next prime is 1906361. The reversal of 1906343 is 3436091.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1906343 - 2⁸ = 1906087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1906393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 953171 + 953172.

It is an arithmetic number, because the mean of its divisors is an integer number (953172).

2^1906343 is an apocalyptic number.

1906343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1906343 is an equidigital number, since it uses as much as digits as its factorization.

1906343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 1906343 is about 1380.7038060352. The cubic root of 1906343 is about 123.9939079560.

The spelling of 1906343 in words is "one million, nine hundred six thousand, three hundred forty-three".