11949671 has 2 divisors, whose sum is σ = 11949672. Its totient is φ = 11949670.

The previous prime is 11949661. The next prime is 11949701. The reversal of 11949671 is 17694911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11949671 - 2¹⁰ = 11948647 is a prime.

It is a Chen prime.

It is equal to p₇₈₄₉₇₃ and since 11949671 and 784973 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11949611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5974835 + 5974836.

It is an arithmetic number, because the mean of its divisors is an integer number (5974836).

Almost surely, 2^11949671 is an apocalyptic number.

11949671 is a deficient number, since it is larger than the sum of its proper divisors (1).

11949671 is an equidigital number, since it uses as much as digits as its factorization.

11949671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 38.

The square root of 11949671 is about 3456.8296168599. The cubic root of 11949671 is about 228.6223315388.

The spelling of 11949671 in words is "eleven million, nine hundred forty-nine thousand, six hundred seventy-one".