11389755 has 24 divisors (see below), whose sum is σ = 19737648. Its totient is φ = 5606016.

The previous prime is 11389723. The next prime is 11389771. The reversal of 11389755 is 55798311.

It is not a de Polignac number, because 11389755 - 2⁵ = 11389723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 289 + ... + 4781.

It is an arithmetic number, because the mean of its divisors is an integer number (822402).

Almost surely, 2^11389755 is an apocalyptic number.

11389755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11389755 is a deficient number, since it is larger than the sum of its proper divisors (8347893).

11389755 is a wasteful number, since it uses less digits than its factorization.

11389755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4527 (or 4514 counting only the distinct ones).

The product of its digits is 37800, while the sum is 39.

The square root of 11389755 is about 3374.8711086499. The cubic root of 11389755 is about 224.9942714591.

The spelling of 11389755 in words is "eleven million, three hundred eighty-nine thousand, seven hundred fifty-five".