14381947 has 2 divisors, whose sum is σ = 14381948. Its totient is φ = 14381946.

The previous prime is 14381933. The next prime is 14381951. The reversal of 14381947 is 74918341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14381947 - 2⁷ = 14381819 is a prime.

It is not a weakly prime, because it can be changed into another prime (14381987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7190973 + 7190974.

It is an arithmetic number, because the mean of its divisors is an integer number (7190974).

Almost surely, 2^14381947 is an apocalyptic number.

14381947 is a deficient number, since it is larger than the sum of its proper divisors (1).

14381947 is an equidigital number, since it uses as much as digits as its factorization.

14381947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 14381947 is about 3792.3537545962. The cubic root of 14381947 is about 243.1863687950.

The spelling of 14381947 in words is "fourteen million, three hundred eighty-one thousand, nine hundred forty-seven".