11897850 has 24 divisors (see below), whose sum is σ = 29507040. Its totient is φ = 3172720.

The previous prime is 11897849. The next prime is 11897861. The reversal of 11897850 is 5879811.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 11897799 and 11897808.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39510 + ... + 39809.

It is an arithmetic number, because the mean of its divisors is an integer number (1229460).

Almost surely, 2^11897850 is an apocalyptic number.

11897850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11897850 is an abundant number, since it is smaller than the sum of its proper divisors (17609190).

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

11897850 is a wasteful number, since it uses less digits than its factorization.

11897850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79334 (or 79329 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 39.

The square root of 11897850 is about 3449.3260211235. The cubic root of 11897850 is about 228.2913710990.

The spelling of 11897850 in words is "eleven million, eight hundred ninety-seven thousand, eight hundred fifty".