11962947 has 4 divisors (see below), whose sum is σ = 15950600. Its totient is φ = 7975296.

The previous prime is 11962943. The next prime is 11962963. The reversal of 11962947 is 74926911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74926911 = 3 ⋅24975637.

It is not a de Polignac number, because 11962947 - 2² = 11962943 is a prime.

It is a super-2 number, since 2×11962947² = 286224201849618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11962943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1993822 + ... + 1993827.

It is an arithmetic number, because the mean of its divisors is an integer number (3987650).

Almost surely, 2^11962947 is an apocalyptic number.

11962947 is a deficient number, since it is larger than the sum of its proper divisors (3987653).

11962947 is an equidigital number, since it uses as much as digits as its factorization.

11962947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3987652.

The product of its digits is 27216, while the sum is 39.

The square root of 11962947 is about 3458.7493404408. The cubic root of 11962947 is about 228.7069661351.

The spelling of 11962947 in words is "eleven million, nine hundred sixty-two thousand, nine hundred forty-seven".