11278963 has 4 divisors (see below), whose sum is σ = 11299288. Its totient is φ = 11258640.

The previous prime is 11278933. The next prime is 11278979. The reversal of 11278963 is 36987211.

11278963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11278963 - 2¹³ = 11270771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11278903) 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, 9306 + ... + 10447.

It is an arithmetic number, because the mean of its divisors is an integer number (2824822).

Almost surely, 2^11278963 is an apocalyptic number.

11278963 is a deficient number, since it is larger than the sum of its proper divisors (20325).

11278963 is an equidigital number, since it uses as much as digits as its factorization.

11278963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20324.

The product of its digits is 18144, while the sum is 37.

The square root of 11278963 is about 3358.4167400726. The cubic root of 11278963 is about 224.2623613271.

The spelling of 11278963 in words is "eleven million, two hundred seventy-eight thousand, nine hundred sixty-three".