13945766 has 8 divisors (see below), whose sum is σ = 21153960. Its totient is φ = 6894448.

The previous prime is 13945747. The next prime is 13945769. The reversal of 13945766 is 66754931.

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 (13945769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38996 + ... + 39351.

It is an arithmetic number, because the mean of its divisors is an integer number (2644245).

Almost surely, 2^13945766 is an apocalyptic number.

13945766 is a deficient number, since it is larger than the sum of its proper divisors (7208194).

13945766 is an equidigital number, since it uses as much as digits as its factorization.

13945766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78438.

The product of its digits is 136080, while the sum is 41.

The square root of 13945766 is about 3734.4030312755. The cubic root of 13945766 is about 240.7026054512.

The spelling of 13945766 in words is "thirteen million, nine hundred forty-five thousand, seven hundred sixty-six".