11987432 has 8 divisors (see below), whose sum is σ = 22476450. Its totient is φ = 5993712.

The previous prime is 11987419. The next prime is 11987453. The reversal of 11987432 is 23478911.

It can be written as a sum of positive squares in only one way, i.e., 9278116 + 2709316 = 3046^2 + 1646^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 11987392 and 11987401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749207 + ... + 749222.

Almost surely, 2^11987432 is an apocalyptic number.

It is an amenable number.

11987432 is a deficient number, since it is larger than the sum of its proper divisors (10489018).

11987432 is a wasteful number, since it uses less digits than its factorization.

11987432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498435 (or 1498431 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 11987432 is about 3462.2871053684. The cubic root of 11987432 is about 228.8628940990.

The spelling of 11987432 in words is "eleven million, nine hundred eighty-seven thousand, four hundred thirty-two".