11453947 has 4 divisors (see below), whose sum is σ = 11697696. Its totient is φ = 11210200.

The previous prime is 11453929. The next prime is 11453951. The reversal of 11453947 is 74935411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11453947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11456947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121804 + ... + 121897.

It is an arithmetic number, because the mean of its divisors is an integer number (2924424).

Almost surely, 2^11453947 is an apocalyptic number.

11453947 is a deficient number, since it is larger than the sum of its proper divisors (243749).

11453947 is an equidigital number, since it uses as much as digits as its factorization.

11453947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243748.

The product of its digits is 15120, while the sum is 34.

The square root of 11453947 is about 3384.3680355422. The cubic root of 11453947 is about 225.4161647577.

The spelling of 11453947 in words is "eleven million, four hundred fifty-three thousand, nine hundred forty-seven".