11780403 has 16 divisors (see below), whose sum is σ = 16321536. Its totient is φ = 7549920.

The previous prime is 11780383. The next prime is 11780411. The reversal of 11780403 is 30408711.

11780403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11780403 - 2⁶ = 11780339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11780443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18000 + ... + 18642.

It is an arithmetic number, because the mean of its divisors is an integer number (1020096).

Almost surely, 2^11780403 is an apocalyptic number.

11780403 is a deficient number, since it is larger than the sum of its proper divisors (4541133).

11780403 is a wasteful number, since it uses less digits than its factorization.

11780403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 11780403 is about 3432.2591685361. The cubic root of 11780403 is about 227.5377098058.

The spelling of 11780403 in words is "eleven million, seven hundred eighty thousand, four hundred three".