11477947 has 8 divisors (see below), whose sum is σ = 12648944. Its totient is φ = 10348128.

The previous prime is 11477929. The next prime is 11477951. The reversal of 11477947 is 74977411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11477947 - 2⁷ = 11477819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11477927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9708 + ... + 10825.

It is an arithmetic number, because the mean of its divisors is an integer number (1581118).

Almost surely, 2^11477947 is an apocalyptic number.

11477947 is a deficient number, since it is larger than the sum of its proper divisors (1170997).

11477947 is a wasteful number, since it uses less digits than its factorization.

11477947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20589.

The product of its digits is 49392, while the sum is 40.

The square root of 11477947 is about 3387.9118937776. The cubic root of 11477947 is about 225.5734966581.

The spelling of 11477947 in words is "eleven million, four hundred seventy-seven thousand, nine hundred forty-seven".