11989652 has 6 divisors (see below), whose sum is σ = 20981898. Its totient is φ = 5994824.

The previous prime is 11989597. The next prime is 11989657. The reversal of 11989652 is 25698911.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11930116 + 59536 = 3454^2 + 244^2 .

It is a super-2 number, since 2×11989652² = 287503510162208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11989657) 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 as a sum of consecutive naturals, namely, 1498703 + ... + 1498710.

It is an arithmetic number, because the mean of its divisors is an integer number (3496983).

Almost surely, 2^11989652 is an apocalyptic number.

It is an amenable number.

11989652 is a deficient number, since it is larger than the sum of its proper divisors (8992246).

11989652 is a wasteful number, since it uses less digits than its factorization.

11989652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997417 (or 2997415 counting only the distinct ones).

The product of its digits is 38880, while the sum is 41.

The square root of 11989652 is about 3462.6076878561. The cubic root of 11989652 is about 228.8770212355.

The spelling of 11989652 in words is "eleven million, nine hundred eighty-nine thousand, six hundred fifty-two".