11216761 has 8 divisors (see below), whose sum is σ = 11798784. Its totient is φ = 10648560.

The previous prime is 11216731. The next prime is 11216771. The reversal of 11216761 is 16761211.

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 not a de Polignac number, because 11216761 - 2⁵ = 11216729 is a prime.

It is a super-2 number, since 2×11216761² = 251631454662242, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11216731) 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, 1771 + ... + 5056.

It is an arithmetic number, because the mean of its divisors is an integer number (1474848).

Almost surely, 2^11216761 is an apocalyptic number.

It is an amenable number.

11216761 is a deficient number, since it is larger than the sum of its proper divisors (582023).

11216761 is an equidigital number, since it uses as much as digits as its factorization.

11216761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6911.

The product of its digits is 504, while the sum is 25.

The square root of 11216761 is about 3349.1433232993. The cubic root of 11216761 is about 223.8493419860.

Adding to 11216761 its reverse (16761211), we get a palindrome (27977972).

The spelling of 11216761 in words is "eleven million, two hundred sixteen thousand, seven hundred sixty-one".