11887398 has 20 divisors (see below), whose sum is σ = 26636940. Its totient is φ = 3962412.

The previous prime is 11887387. The next prime is 11887429. The reversal of 11887398 is 89378811.

11887398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 36528 + ... + 36851.

It is an arithmetic number, because the mean of its divisors is an integer number (1331847).

Almost surely, 2^11887398 is an apocalyptic number.

11887398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11887398 is an abundant number, since it is smaller than the sum of its proper divisors (14749542).

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

11887398 is an equidigital number, since it uses as much as digits as its factorization.

11887398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73393 (or 73384 counting only the distinct ones).

The product of its digits is 96768, while the sum is 45.

The square root of 11887398 is about 3447.8106096478. The cubic root of 11887398 is about 228.2245018617.

The spelling of 11887398 in words is "eleven million, eight hundred eighty-seven thousand, three hundred ninety-eight".