11897910 has 24 divisors (see below), whose sum is σ = 30934800. Its totient is φ = 3172752.

The previous prime is 11897891. The next prime is 11897911. The reversal of 11897910 is 1979811.

11897910 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11897911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66010 + ... + 66189.

It is an arithmetic number, because the mean of its divisors is an integer number (1288950).

Almost surely, 2^11897910 is an apocalyptic number.

11897910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11897910 is an abundant number, since it is smaller than the sum of its proper divisors (19036890).

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

11897910 is a wasteful number, since it uses less digits than its factorization.

11897910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132212 (or 132209 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 36.

The square root of 11897910 is about 3449.3347184638. The cubic root of 11897910 is about 228.2917548507.

The spelling of 11897910 in words is "eleven million, eight hundred ninety-seven thousand, nine hundred ten".