11712830 has 16 divisors (see below), whose sum is σ = 22323600. Its totient is φ = 4409472.

The previous prime is 11712817. The next prime is 11712853. The reversal of 11712830 is 3821711.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11712796 and 11712805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34280 + ... + 34619.

It is an arithmetic number, because the mean of its divisors is an integer number (1395225).

Almost surely, 2^11712830 is an apocalyptic number.

11712830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11712830 is a deficient number, since it is larger than the sum of its proper divisors (10610770).

11712830 is a wasteful number, since it uses less digits than its factorization.

11712830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68923.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 11712830 is about 3422.4012038334. The cubic root of 11712830 is about 227.1018192921.

The spelling of 11712830 in words is "eleven million, seven hundred twelve thousand, eight hundred thirty".