11893820 has 24 divisors (see below), whose sum is σ = 25510464. Its totient is φ = 4655936.

The previous prime is 11893811. The next prime is 11893853. The reversal of 11893820 is 2839811.

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, 5387 + ... + 7266.

It is an arithmetic number, because the mean of its divisors is an integer number (1062936).

Almost surely, 2^11893820 is an apocalyptic number.

11893820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11893820 is an abundant number, since it is smaller than the sum of its proper divisors (13616644).

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

11893820 is a wasteful number, since it uses less digits than its factorization.

11893820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12709 (or 12707 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 11893820 is about 3448.7417995553. The cubic root of 11893820 is about 228.2655928248.

The spelling of 11893820 in words is "eleven million, eight hundred ninety-three thousand, eight hundred twenty".