11409761 has 8 divisors (see below), whose sum is σ = 12597984. Its totient is φ = 10246720.

The previous prime is 11409757. The next prime is 11409763. The reversal of 11409761 is 16790411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11409761 - 2² = 11409757 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11409763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5336 + ... + 7161.

It is an arithmetic number, because the mean of its divisors is an integer number (1574748).

Almost surely, 2^11409761 is an apocalyptic number.

11409761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11409761 is a deficient number, since it is larger than the sum of its proper divisors (1188223).

11409761 is a wasteful number, since it uses less digits than its factorization.

11409761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12591.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 11409761 is about 3377.8337732932. The cubic root of 11409761 is about 225.1259278615.

It can be divided in two parts, 1140 and 9761, that added together give a palindrome (10901).

The spelling of 11409761 in words is "eleven million, four hundred nine thousand, seven hundred sixty-one".