11972885 has 8 divisors (see below), whose sum is σ = 14394456. Its totient is φ = 9560320.

The previous prime is 11972837. The next prime is 11972899. The reversal of 11972885 is 58827911.

11972885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 77284 + 11895601 = 278^2 + 3449^2 .

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

It is not a de Polignac number, because 11972885 - 2⁸ = 11972629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1145 + ... + 5025.

It is an arithmetic number, because the mean of its divisors is an integer number (1799307).

Almost surely, 2^11972885 is an apocalyptic number.

It is an amenable number.

11972885 is a deficient number, since it is larger than the sum of its proper divisors (2421571).

11972885 is an equidigital number, since it uses as much as digits as its factorization.

11972885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4503.

The product of its digits is 40320, while the sum is 41.

The square root of 11972885 is about 3460.1856886589. The cubic root of 11972885 is about 228.7702799861.

The spelling of 11972885 in words is "eleven million, nine hundred seventy-two thousand, eight hundred eighty-five".