11398013 has 4 divisors (see below), whose sum is σ = 12434208. Its totient is φ = 10361820.

The previous prime is 11398003. The next prime is 11398027. The reversal of 11398013 is 31089311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11398013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11398003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518081 + ... + 518102.

It is an arithmetic number, because the mean of its divisors is an integer number (3108552).

Almost surely, 2^11398013 is an apocalyptic number.

It is an amenable number.

11398013 is a deficient number, since it is larger than the sum of its proper divisors (1036195).

11398013 is a wasteful number, since it uses less digits than its factorization.

11398013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036194.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 11398013 is about 3376.0943410989. The cubic root of 11398013 is about 225.0486347541.

The spelling of 11398013 in words is "eleven million, three hundred ninety-eight thousand, thirteen".