11972648 has 8 divisors (see below), whose sum is σ = 22448730. Its totient is φ = 5986320.

The previous prime is 11972633. The next prime is 11972651. The reversal of 11972648 is 84627911.

It can be written as a sum of positive squares in only one way, i.e., 11957764 + 14884 = 3458^2 + 122^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 748283 + ... + 748298.

Almost surely, 2^11972648 is an apocalyptic number.

It is an amenable number.

11972648 is a deficient number, since it is larger than the sum of its proper divisors (10476082).

11972648 is a wasteful number, since it uses less digits than its factorization.

11972648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496587 (or 1496583 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 11972648 is about 3460.1514417725. The cubic root of 11972648 is about 228.7687704943.

The spelling of 11972648 in words is "eleven million, nine hundred seventy-two thousand, six hundred forty-eight".