11731906 has 8 divisors (see below), whose sum is σ = 17769024. Its totient is φ = 5808900.

The previous prime is 11731883. The next prime is 11731913. The reversal of 11731906 is 60913711.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28270 + ... + 28681.

It is an arithmetic number, because the mean of its divisors is an integer number (2221128).

Almost surely, 2^11731906 is an apocalyptic number.

11731906 is a deficient number, since it is larger than the sum of its proper divisors (6037118).

11731906 is a wasteful number, since it uses less digits than its factorization.

11731906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57056.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 11731906 is about 3425.1870021942. The cubic root of 11731906 is about 227.2250415639.

It can be divided in two parts, 117 and 31906, that added together give a palindrome (32023).

The spelling of 11731906 in words is "eleven million, seven hundred thirty-one thousand, nine hundred six".