11913724 has 12 divisors (see below), whose sum is σ = 21755664. Its totient is φ = 5697824.

The previous prime is 11913721. The next prime is 11913731. The reversal of 11913724 is 42731911.

It is a junction number, because it is equal to n+sod(n) for n = 11913692 and 11913701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11913721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64657 + ... + 64840.

It is an arithmetic number, because the mean of its divisors is an integer number (1812972).

Almost surely, 2^11913724 is an apocalyptic number.

It is an amenable number.

11913724 is a deficient number, since it is larger than the sum of its proper divisors (9841940).

11913724 is a wasteful number, since it uses less digits than its factorization.

11913724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129524 (or 129522 counting only the distinct ones).

The product of its digits is 1512, while the sum is 28.

The square root of 11913724 is about 3451.6262833627. The cubic root of 11913724 is about 228.3928540494.

The spelling of 11913724 in words is "eleven million, nine hundred thirteen thousand, seven hundred twenty-four".