11651699 has 2 divisors, whose sum is σ = 11651700. Its totient is φ = 11651698.

The previous prime is 11651687. The next prime is 11651701. The reversal of 11651699 is 99615611.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11651699 - 2²⁰ = 10603123 is a prime.

Together with 11651701, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11651659) 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 as a sum of consecutive naturals, namely, 5825849 + 5825850.

It is an arithmetic number, because the mean of its divisors is an integer number (5825850).

Almost surely, 2^11651699 is an apocalyptic number.

11651699 is a deficient number, since it is larger than the sum of its proper divisors (1).

11651699 is an equidigital number, since it uses as much as digits as its factorization.

11651699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 38.

The square root of 11651699 is about 3413.4585100745. The cubic root of 11651699 is about 226.7060372308.

It can be divided in two parts, 116 and 51699, that added together give a palindrome (51815).

The spelling of 11651699 in words is "eleven million, six hundred fifty-one thousand, six hundred ninety-nine".