11865372 has 24 divisors (see below), whose sum is σ = 28156800. Its totient is φ = 3887856.

The previous prime is 11865361. The next prime is 11865383. The reversal of 11865372 is 27356811.

It is an interprime number because it is at equal distance from previous prime (11865361) and next prime (11865383).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7672 + ... + 9087.

It is an arithmetic number, because the mean of its divisors is an integer number (1173200).

Almost surely, 2^11865372 is an apocalyptic number.

11865372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11865372 is an abundant number, since it is smaller than the sum of its proper divisors (16291428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11865372 is a wasteful number, since it uses less digits than its factorization.

11865372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16825 (or 16823 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 11865372 is about 3444.6149276806. The cubic root of 11865372 is about 228.0834566748.

The spelling of 11865372 in words is "eleven million, eight hundred sixty-five thousand, three hundred seventy-two".