11641633 has 4 divisors (see below), whose sum is σ = 11667348. Its totient is φ = 11615920.

The previous prime is 11641621. The next prime is 11641639. The reversal of 11641633 is 33614611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33614611 = 37 ⋅908503.

It can be written as a sum of positive squares in 2 ways, for example, as 8020224 + 3621409 = 2832^2 + 1903^2 .

It is a cyclic number.

It is not a de Polignac number, because 11641633 - 2⁹ = 11641121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11641598 and 11641607.

It is not an unprimeable number, because it can be changed into a prime (11641639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12166 + ... + 13087.

It is an arithmetic number, because the mean of its divisors is an integer number (2916837).

Almost surely, 2^11641633 is an apocalyptic number.

It is an amenable number.

11641633 is a deficient number, since it is larger than the sum of its proper divisors (25715).

11641633 is an equidigital number, since it uses as much as digits as its factorization.

11641633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25714.

The product of its digits is 1296, while the sum is 25.

The square root of 11641633 is about 3411.9837338416. The cubic root of 11641633 is about 226.6407340094.

The spelling of 11641633 in words is "eleven million, six hundred forty-one thousand, six hundred thirty-three".