11959953 has 4 divisors (see below), whose sum is σ = 15946608. Its totient is φ = 7973300.

The previous prime is 11959951. The next prime is 11959957. The reversal of 11959953 is 35995911.

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.

It is a cyclic number.

It is not a de Polignac number, because 11959953 - 2¹ = 11959951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11959951) 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, 1993323 + ... + 1993328.

It is an arithmetic number, because the mean of its divisors is an integer number (3986652).

Almost surely, 2^11959953 is an apocalyptic number.

It is an amenable number.

11959953 is a deficient number, since it is larger than the sum of its proper divisors (3986655).

11959953 is an equidigital number, since it uses as much as digits as its factorization.

11959953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3986654.

The product of its digits is 54675, while the sum is 42.

The square root of 11959953 is about 3458.3164979510. The cubic root of 11959953 is about 228.6878848337.

The spelling of 11959953 in words is "eleven million, nine hundred fifty-nine thousand, nine hundred fifty-three".