11867830 has 16 divisors (see below), whose sum is σ = 23005584. Its totient is φ = 4381920.

The previous prime is 11867827. The next prime is 11867831. The reversal of 11867830 is 3876811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11867831) 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 7 ways as a sum of consecutive naturals, for example, 45516 + ... + 45775.

It is an arithmetic number, because the mean of its divisors is an integer number (1437849).

Almost surely, 2^11867830 is an apocalyptic number.

11867830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11867830 is a deficient number, since it is larger than the sum of its proper divisors (11137754).

11867830 is a wasteful number, since it uses less digits than its factorization.

11867830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91311.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 11867830 is about 3444.9716979970. The cubic root of 11867830 is about 228.0992053151.

The spelling of 11867830 in words is "eleven million, eight hundred sixty-seven thousand, eight hundred thirty".