11972247 has 8 divisors (see below), whose sum is σ = 18243456. Its totient is φ = 6841272.

The previous prime is 11972243. The next prime is 11972249. The reversal of 11972247 is 74227911.

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

It is not a de Polignac number, because 11972247 - 2² = 11972243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11972243) 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, 285033 + ... + 285074.

It is an arithmetic number, because the mean of its divisors is an integer number (2280432).

Almost surely, 2^11972247 is an apocalyptic number.

11972247 is a deficient number, since it is larger than the sum of its proper divisors (6271209).

11972247 is an equidigital number, since it uses as much as digits as its factorization.

11972247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570117.

The product of its digits is 7056, while the sum is 33.

The square root of 11972247 is about 3460.0934958466. The cubic root of 11972247 is about 228.7662164143.

The spelling of 11972247 in words is "eleven million, nine hundred seventy-two thousand, two hundred forty-seven".