11977948 has 12 divisors (see below), whose sum is σ = 21178192. Its totient is φ = 5927040.

The previous prime is 11977937. The next prime is 11977949. The reversal of 11977948 is 84977911.

It is a junction number, because it is equal to n+sod(n) for n = 11977898 and 11977907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11977949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15048 + ... + 15823.

Almost surely, 2^11977948 is an apocalyptic number.

It is an amenable number.

11977948 is a deficient number, since it is larger than the sum of its proper divisors (9200244).

11977948 is a wasteful number, since it uses less digits than its factorization.

11977948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30972 (or 30970 counting only the distinct ones).

The product of its digits is 127008, while the sum is 46.

The square root of 11977948 is about 3460.9172194665. The cubic root of 11977948 is about 228.8025223042.

The spelling of 11977948 in words is "eleven million, nine hundred seventy-seven thousand, nine hundred forty-eight".