11072391 has 8 divisors (see below), whose sum is σ = 16105344. Its totient is φ = 6710520.

The previous prime is 11072381. The next prime is 11072417. The reversal of 11072391 is 19327011.

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

It is not a de Polignac number, because 11072391 - 2⁵ = 11072359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11072381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167731 + ... + 167796.

It is an arithmetic number, because the mean of its divisors is an integer number (2013168).

Almost surely, 2^11072391 is an apocalyptic number.

11072391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11072391 is a deficient number, since it is larger than the sum of its proper divisors (5032953).

11072391 is a wasteful number, since it uses less digits than its factorization.

11072391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335541.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 11072391 is about 3327.5202478723. The cubic root of 11072391 is about 222.8848098341.

The spelling of 11072391 in words is "eleven million, seventy-two thousand, three hundred ninety-one".