11395989 has 24 divisors (see below), whose sum is σ = 18381792. Its totient is φ = 6743520.

The previous prime is 11395981. The next prime is 11396009. The reversal of 11395989 is 98959311.

It is not a de Polignac number, because 11395989 - 2³ = 11395981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11395981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2919 + ... + 5595.

It is an arithmetic number, because the mean of its divisors is an integer number (765908).

Almost surely, 2^11395989 is an apocalyptic number.

It is an amenable number.

11395989 is a deficient number, since it is larger than the sum of its proper divisors (6985803).

11395989 is a wasteful number, since it uses less digits than its factorization.

11395989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737 (or 2734 counting only the distinct ones).

The product of its digits is 87480, while the sum is 45.

The square root of 11395989 is about 3375.7945731339. The cubic root of 11395989 is about 225.0353129760.

The spelling of 11395989 in words is "eleven million, three hundred ninety-five thousand, nine hundred eighty-nine".