11401447 has 2 divisors, whose sum is σ = 11401448. Its totient is φ = 11401446.

The previous prime is 11401427. The next prime is 11401451. The reversal of 11401447 is 74410411.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11401447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11401417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5700723 + 5700724.

It is an arithmetic number, because the mean of its divisors is an integer number (5700724).

Almost surely, 2^11401447 is an apocalyptic number.

11401447 is a deficient number, since it is larger than the sum of its proper divisors (1).

11401447 is an equidigital number, since it uses as much as digits as its factorization.

11401447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 11401447 is about 3376.6028786341. The cubic root of 11401447 is about 225.0712334127.

Adding to 11401447 its reverse (74410411), we get a palindrome (85811858).

The spelling of 11401447 in words is "eleven million, four hundred one thousand, four hundred forty-seven".