11813937 has 8 divisors (see below), whose sum is σ = 15768480. Its totient is φ = 7867680.

The previous prime is 11813917. The next prime is 11813939. The reversal of 11813937 is 73931811.

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

It is not a de Polignac number, because 11813937 - 2¹² = 11809841 is a prime.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 11813898 and 11813907.

It is not an unprimeable number, because it can be changed into a prime (11813939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3114 + ... + 5772.

It is an arithmetic number, because the mean of its divisors is an integer number (1971060).

Almost surely, 2^11813937 is an apocalyptic number.

It is an amenable number.

11813937 is a deficient number, since it is larger than the sum of its proper divisors (3954543).

11813937 is a wasteful number, since it uses less digits than its factorization.

11813937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143.

The product of its digits is 4536, while the sum is 33.

The square root of 11813937 is about 3437.1408175983. The cubic root of 11813937 is about 227.7534076027.

The spelling of 11813937 in words is "eleven million, eight hundred thirteen thousand, nine hundred thirty-seven".