11313729 has 32 divisors (see below), whose sum is σ = 19783680. Its totient is φ = 6253200.

The previous prime is 11313727. The next prime is 11313733. The reversal of 11313729 is 92731311.

11313729 = 333² + 334² + ... + 413².

It is not a de Polignac number, because 11313729 - 2¹ = 11313727 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11313727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4894 + ... + 6824.

It is an arithmetic number, because the mean of its divisors is an integer number (618240).

Almost surely, 2^11313729 is an apocalyptic number.

It is an amenable number.

11313729 is a deficient number, since it is larger than the sum of its proper divisors (8469951).

11313729 is a wasteful number, since it uses less digits than its factorization.

11313729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978 (or 1972 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 11313729 is about 3363.5887085076. The cubic root of 11313729 is about 224.4925452590.

The spelling of 11313729 in words is "eleven million, three hundred thirteen thousand, seven hundred twenty-nine".