11609651 has 2 divisors, whose sum is σ = 11609652. Its totient is φ = 11609650.

The previous prime is 11609629. The next prime is 11609659. The reversal of 11609651 is 15690611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11609651 - 2¹⁸ = 11347507 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11609659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5804825 + 5804826.

It is an arithmetic number, because the mean of its divisors is an integer number (5804826).

Almost surely, 2^11609651 is an apocalyptic number.

11609651 is a deficient number, since it is larger than the sum of its proper divisors (1).

11609651 is an equidigital number, since it uses as much as digits as its factorization.

11609651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 11609651 is about 3407.2937942009. The cubic root of 11609651 is about 226.4330005024.

The spelling of 11609651 in words is "eleven million, six hundred nine thousand, six hundred fifty-one".