11673720 has 96 divisors (see below), whose sum is σ = 39377520. Its totient is φ = 3110400.

The previous prime is 11673707. The next prime is 11673731. The reversal of 11673720 is 2737611.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9120 + ... + 10320.

Almost surely, 2^11673720 is an apocalyptic number.

11673720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11673720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19688760).

11673720 is an abundant number, since it is smaller than the sum of its proper divisors (27703800).

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

11673720 is a wasteful number, since it uses less digits than its factorization.

11673720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227 (or 1211 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 11673720 is about 3416.6826015889. The cubic root of 11673720 is about 226.8487675428.

The spelling of 11673720 in words is "eleven million, six hundred seventy-three thousand, seven hundred twenty".