1946407 has 2 divisors, whose sum is σ = 1946408. Its totient is φ = 1946406.

The previous prime is 1946401. The next prime is 1946429. The reversal of 1946407 is 7046491.

It is a weak prime.

It is an emirp because it is prime and its reverse (7046491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1946407 - 2¹⁹ = 1422119 is a prime.

It is a Chen prime.

1946407 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1946401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973203 + 973204.

It is an arithmetic number, because the mean of its divisors is an integer number (973204).

2^1946407 is an apocalyptic number.

1946407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1946407 is an equidigital number, since it uses as much as digits as its factorization.

1946407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1946407 is about 1395.1369108442. The cubic root of 1946407 is about 124.8565180331.

The spelling of 1946407 in words is "one million, nine hundred forty-six thousand, four hundred seven".