11973830 has 32 divisors (see below), whose sum is σ = 23673600. Its totient is φ = 4324320.

The previous prime is 11973821. The next prime is 11973833. The reversal of 11973830 is 3837911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11973833) 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 in 15 ways as a sum of consecutive naturals, for example, 21617 + ... + 22163.

It is an arithmetic number, because the mean of its divisors is an integer number (739800).

Almost surely, 2^11973830 is an apocalyptic number.

11973830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11973830 is a deficient number, since it is larger than the sum of its proper divisors (11699770).

11973830 is a wasteful number, since it uses less digits than its factorization.

11973830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 11973830 is about 3460.3222393297. The cubic root of 11973830 is about 228.7762986476.

The spelling of 11973830 in words is "eleven million, nine hundred seventy-three thousand, eight hundred thirty".