10971947 has 8 divisors (see below), whose sum is σ = 12972000. Its totient is φ = 9080064.

The previous prime is 10971931. The next prime is 10971959. The reversal of 10971947 is 74917901.

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

It is not a de Polignac number, because 10971947 - 2⁴ = 10971931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10971947.

It is not an unprimeable number, because it can be changed into a prime (10971047) 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, 26822 + ... + 27227.

It is an arithmetic number, because the mean of its divisors is an integer number (1621500).

Almost surely, 2^10971947 is an apocalyptic number.

10971947 is a deficient number, since it is larger than the sum of its proper divisors (2000053).

10971947 is an equidigital number, since it uses as much as digits as its factorization.

10971947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54085.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 10971947 is about 3312.3929416662. The cubic root of 10971947 is about 222.2087895862.

The spelling of 10971947 in words is "ten million, nine hundred seventy-one thousand, nine hundred forty-seven".