11963389 has 2 divisors, whose sum is σ = 11963390. Its totient is φ = 11963388.

The previous prime is 11963387. The next prime is 11963401. The reversal of 11963389 is 98336911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11957764 + 5625 = 3458^2 + 75^2 .

It is a cyclic number.

It is not a de Polignac number, because 11963389 - 2¹ = 11963387 is a prime.

Together with 11963387, it forms a pair of twin primes.

It is equal to p₇₈₅₈₃₉ and since 11963389 and 785839 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 (11963387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5981694 + 5981695.

It is an arithmetic number, because the mean of its divisors is an integer number (5981695).

Almost surely, 2^11963389 is an apocalyptic number.

It is an amenable number.

11963389 is a deficient number, since it is larger than the sum of its proper divisors (1).

11963389 is an equidigital number, since it uses as much as digits as its factorization.

11963389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 40.

The square root of 11963389 is about 3458.8132357790. The cubic root of 11963389 is about 228.7097828110.

The spelling of 11963389 in words is "eleven million, nine hundred sixty-three thousand, three hundred eighty-nine".