11620447 has 2 divisors, whose sum is σ = 11620448. Its totient is φ = 11620446.

The previous prime is 11620429. The next prime is 11620459. The reversal of 11620447 is 74402611.

11620447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11620447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11621447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5810223 + 5810224.

It is an arithmetic number, because the mean of its divisors is an integer number (5810224).

Almost surely, 2^11620447 is an apocalyptic number.

11620447 is a deficient number, since it is larger than the sum of its proper divisors (1).

11620447 is an equidigital number, since it uses as much as digits as its factorization.

11620447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 11620447 is about 3408.8776745433. The cubic root of 11620447 is about 226.5031666459.

The spelling of 11620447 in words is "eleven million, six hundred twenty thousand, four hundred forty-seven".