11621711 has 8 divisors (see below), whose sum is σ = 12343920. Its totient is φ = 10910592.

The previous prime is 11621699. The next prime is 11621717. The reversal of 11621711 is 11712611.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11621711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560 + ... + 4853.

It is an arithmetic number, because the mean of its divisors is an integer number (1542990).

Almost surely, 2^11621711 is an apocalyptic number.

11621711 is a deficient number, since it is larger than the sum of its proper divisors (722209).

11621711 is a wasteful number, since it uses less digits than its factorization.

11621711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5545.

The product of its digits is 84, while the sum is 20.

The square root of 11621711 is about 3409.0630677651. The cubic root of 11621711 is about 226.5113788838.

The spelling of 11621711 in words is "eleven million, six hundred twenty-one thousand, seven hundred eleven".