11936649 has 4 divisors (see below), whose sum is σ = 15915536. Its totient is φ = 7957764.

The previous prime is 11936647. The next prime is 11936651. The reversal of 11936649 is 94663911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94663911 = 3 ⋅31554637.

It is an interprime number because it is at equal distance from previous prime (11936647) and next prime (11936651).

It is not a de Polignac number, because 11936649 - 2¹ = 11936647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11936641) 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 in 3 ways as a sum of consecutive naturals, for example, 1989439 + ... + 1989444.

It is an arithmetic number, because the mean of its divisors is an integer number (3978884).

Almost surely, 2^11936649 is an apocalyptic number.

It is an amenable number.

11936649 is a deficient number, since it is larger than the sum of its proper divisors (3978887).

11936649 is an equidigital number, since it uses as much as digits as its factorization.

11936649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978886.

The product of its digits is 34992, while the sum is 39.

The square root of 11936649 is about 3454.9455856786. The cubic root of 11936649 is about 228.5392552744.

The spelling of 11936649 in words is "eleven million, nine hundred thirty-six thousand, six hundred forty-nine".