11963257 has 4 divisors (see below), whose sum is σ = 12666996. Its totient is φ = 11259520.

The previous prime is 11963249. The next prime is 11963261. The reversal of 11963257 is 75236911.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8904256 + 3059001 = 2984^2 + 1749^2 .

It is a cyclic number.

It is not a de Polignac number, because 11963257 - 2³ = 11963249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11963227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351844 + ... + 351877.

It is an arithmetic number, because the mean of its divisors is an integer number (3166749).

Almost surely, 2^11963257 is an apocalyptic number.

11963257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11963257 is a deficient number, since it is larger than the sum of its proper divisors (703739).

11963257 is an equidigital number, since it uses as much as digits as its factorization.

11963257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703738.

The product of its digits is 11340, while the sum is 34.

The square root of 11963257 is about 3458.7941540369. The cubic root of 11963257 is about 228.7089416390.

The spelling of 11963257 in words is "eleven million, nine hundred sixty-three thousand, two hundred fifty-seven".