11778406 has 8 divisors (see below), whose sum is σ = 17967240. Its totient is φ = 5789328.

The previous prime is 11778391. The next prime is 11778409. The reversal of 11778406 is 60487711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11778409) 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, 49791 + ... + 50026.

It is an arithmetic number, because the mean of its divisors is an integer number (2245905).

Almost surely, 2^11778406 is an apocalyptic number.

11778406 is a deficient number, since it is larger than the sum of its proper divisors (6188834).

11778406 is an equidigital number, since it uses as much as digits as its factorization.

11778406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99878.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 11778406 is about 3431.9682399463. The cubic root of 11778406 is about 227.5248517713.

The spelling of 11778406 in words is "eleven million, seven hundred seventy-eight thousand, four hundred six".