946391 has 2 divisors, whose sum is σ = 946392. Its totient is φ = 946390.

The previous prime is 946369. The next prime is 946397. The reversal of 946391 is 193649.

It is a strong prime.

It is an emirp because it is prime and its reverse (193649) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 946391 - 2⁶ = 946327 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (946397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473195 + 473196.

It is an arithmetic number, because the mean of its divisors is an integer number (473196).

2⁹⁴⁶³⁹¹ is an apocalyptic number.

946391 is a deficient number, since it is larger than the sum of its proper divisors (1).

946391 is an equidigital number, since it uses as much as digits as its factorization.

946391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 32.

The square root of 946391 is about 972.8262948749. The cubic root of 946391 is about 98.1801144122.

The spelling of 946391 in words is "nine hundred forty-six thousand, three hundred ninety-one".