11783730 has 32 divisors (see below), whose sum is σ = 32321664. Its totient is φ = 2693376.

The previous prime is 11783729. The next prime is 11783731. The reversal of 11783730 is 3738711.

It is an interprime number because it is at equal distance from previous prime (11783729) and next prime (11783731).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11783731) 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, 27847 + ... + 28266.

It is an arithmetic number, because the mean of its divisors is an integer number (1010052).

Almost surely, 2^11783730 is an apocalyptic number.

11783730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11783730 is an abundant number, since it is smaller than the sum of its proper divisors (20537934).

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

11783730 is a wasteful number, since it uses less digits than its factorization.

11783730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56130.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 11783730 is about 3432.7438005188. The cubic root of 11783730 is about 227.5591280518.

The spelling of 11783730 in words is "eleven million, seven hundred eighty-three thousand, seven hundred thirty".