11985830 has 8 divisors (see below), whose sum is σ = 21574512. Its totient is φ = 4794328.

The previous prime is 11985821. The next prime is 11985839. The reversal of 11985830 is 3858911.

It is an interprime number because it is at equal distance from previous prime (11985821) and next prime (11985839).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11985839) 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, 599282 + ... + 599301.

It is an arithmetic number, because the mean of its divisors is an integer number (2696814).

Almost surely, 2^11985830 is an apocalyptic number.

11985830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11985830 is a deficient number, since it is larger than the sum of its proper divisors (9588682).

11985830 is a wasteful number, since it uses less digits than its factorization.

11985830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198590.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 11985830 is about 3462.0557476736. The cubic root of 11985830 is about 228.8526985683.

The spelling of 11985830 in words is "eleven million, nine hundred eighty-five thousand, eight hundred thirty".