11712506 has 8 divisors (see below), whose sum is σ = 18920244. Its totient is φ = 5405760.

The previous prime is 11712499. The next prime is 11712517. The reversal of 11712506 is 60521711.

It can be written as a sum of positive squares in 2 ways, for example, as 8323225 + 3389281 = 2885^2 + 1841^2 .

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, 225215 + ... + 225266.

Almost surely, 2^11712506 is an apocalyptic number.

11712506 is a deficient number, since it is larger than the sum of its proper divisors (7207738).

11712506 is a wasteful number, since it uses less digits than its factorization.

11712506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450496.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 11712506 is about 3422.3538683193. The cubic root of 11712506 is about 227.0997252445.

The spelling of 11712506 in words is "eleven million, seven hundred twelve thousand, five hundred six".