11993499 has 24 divisors (see below), whose sum is σ = 19968000. Its totient is φ = 6794928.

The previous prime is 11993491. The next prime is 11993519. The reversal of 11993499 is 99439911.

11993499 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11993499 - 2³ = 11993491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11993491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7252 + ... + 8750.

It is an arithmetic number, because the mean of its divisors is an integer number (832000).

Almost surely, 2^11993499 is an apocalyptic number.

11993499 is a deficient number, since it is larger than the sum of its proper divisors (7974501).

11993499 is a wasteful number, since it uses less digits than its factorization.

11993499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639 (or 1636 counting only the distinct ones).

The product of its digits is 78732, while the sum is 45.

The square root of 11993499 is about 3463.1631494921. The cubic root of 11993499 is about 228.9014977798.

The spelling of 11993499 in words is "eleven million, nine hundred ninety-three thousand, four hundred ninety-nine".