11403247 has 2 divisors, whose sum is σ = 11403248. Its totient is φ = 11403246.

The previous prime is 11403221. The next prime is 11403283. The reversal of 11403247 is 74230411.

It is a weak prime.

It is an emirp because it is prime and its reverse (74230411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11403247 - 2¹¹ = 11401199 is a prime.

It is equal to p₇₅₁₃₃₃ and since 11403247 and 751333 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11403047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5701623 + 5701624.

It is an arithmetic number, because the mean of its divisors is an integer number (5701624).

Almost surely, 2^11403247 is an apocalyptic number.

11403247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11403247 is an equidigital number, since it uses as much as digits as its factorization.

11403247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 11403247 is about 3376.8694081945. The cubic root of 11403247 is about 225.0830771404.

Adding to 11403247 its reverse (74230411), we get a palindrome (85633658).

The spelling of 11403247 in words is "eleven million, four hundred three thousand, two hundred forty-seven".